Serious, but all are expected to survive. Police found a Pressure Cooker just four blocks north of the explosion site. Investigators do not yet know if the explosion was caused by a similar device. Officials shut down several blocks of manhattan between 14th and 32nd streets and 5th and 8th avenues. They have enhanced security across all five new york city boroughs. There is no evidence at this point of a terror connection to this incident. This is preliminary information. Its something we will be investigating very carefully, but there is no evidence at this point of a terror connection. But we do want to be very clear, the early indications, the initial indications is this was an intentional act. Just 11 hours before the chelsea explosion, a device went off in a garbage can in seaside park, new jersey. Mayor de blasio says there is no indication that the incidents are related. Richard engle joins us live from the scene. What more can you tell us about these incidents . Reporter the question is are these incidents related. You have two effective bombs that were left discarded at locations. The first one in new jersey yesterday morning, a pipe bomb left in a trash can apparently timed to go off as runners were taking part in that race in support of u. S. Marines. The race however went was delayed so the bomb went off and no one was injured. And then last night around 8 30, where i am right now, a bomb exploded in a dumpster causing some damage. I wouldnt say it was a huge bomb. It didnt cause what you would say a military style explosion or a car bomb like ive seen in many countries around the world. This one shattered a lot of windows, caused a lot of panic. People were running, but not a lot of smoke. You dont see any charred buildings or any fire. And then the third incident, a Pressure Cooker device found just a few blocks from here now apparently authorities are looking at that device trying to determine if it really was a bomb, what it may have been contained and trying to figure out are all three of these incidents linked. Was it the same group, was it the same person. The mayor saying at this stage, no link to terrorism. But frankly, until you know who did this and what i know spiens to do it. Theres usually somebody nearby, a restaurant, a population where there are people nearby. Were these bombs or where these explosions took place, were they near something iconic, were they near a restaurant, were they near someplace where there were lots of people . Reporter the one in new jersey, clearly. Thats a much more obvious target. A running race in support of the u. S. Marines. That sounds like the kind of target that has a political motivation. Here on 23rd street, much less so. This is a busy street. It is a busy thoroughfare. But specifically. Where the dumpster was i would say is one of the quieter parts of this very busy street. It was by a church that is closed. It was by a school and Rehabilitation Center for the blind. There was some theres been construction going on at that facility for a long time. So thats why the dumpster was there. It was for construction debris. But theres not a theres not an outdoor cafe. There were two subway stops just a few hundred yards from where this bomb took place. So one would have thought if the intention was to have mass casualties, you could have put it near one of the subways. So, no, this was not a particularly obvious target. Same thing on 27th street. Not a particularly iconic location, not a particularly busy street in this area. Yes, every street in manhattan is busy, but there are many more locations that one could have chosen if you wanted to find a crowd. Yeah, absolutely. Lastly, what about the security situation there now . How heavy is the Police Presence . Give us a little bit of a color of what youre seeing behind you know. Reporter you can see some of it behind me. This whole area has been closed off. The the several square block radius all around where the device on 23rd street exploded has been sealed off. People, even residents and Business Owners are not allowed at this point to go back to their apartments or at least as of a couple minutes ago that was the case. Police officials and city Officials Say that security has been stepped up all across the five boroughs until they figure out more, is this going to be a knock off, will there be more attacks. Its important to understand, the u. N. General assembly has already it is ratcheting up with president obama expected here on tuesday to give what is considered one of his farewell addresses where hes going to try to wrap up his eight years in the office. Already, there are International Delegations here before a president ial visit. You can imagine there is more security in the city. So last night, i was in this area when the explosion happened. I heard it myself. Within minutes, there was just a sea of police, fbi, National Guard, not just a fast response, but a massive response because the city i think one that already responds quickly to these kind of incidents, but especially now with the u. N. General assembly in process and gearing up for president obamas arrival on tuesday. Absolutely. Unfortunately in new york very familiar with having to deal with frightening incidents and very quick to do so. Thank you so much Richard Engle. Reporter the city is going to be a tangle of traffic for the next several days i suspect. Yes, indeed. Thank you very much. Let me bring in pete williams. Pete, what can you tell us about the status of the investigations . What theyre looking at is commonalities among these devices. There appear to be at least some surface similarities. The bomb in new jersey was placed in a plastic trash can. The one in new york that went off was in a dumpster. So that seems to be something in common. Secondly, broadly speaking, the two devices that they recovered largely intact, the one in new jersey and the second device on 27th street in new york. Broadly speaking, theyre very different. One was pipe bombs, the other made from a Pressure Cooker. Instructions that were first printed in the al qaeda online magazine inspire. On the one hand, similarities, on the other hand, this stuff is widely available. Theyre going to be looking at a much more granular level of how these things were made. Was the explosive material in the pipe bombs and the Pressure Cooker the same or similar, how were the wires kekconnected. There are forensic profiles, if you will, telltale construction finger prohibprints of how thes devices are made that are commonly known to bomb techs. Theyll be looking very closely to see whether these are copy cats or just a coincidence or what. The one in new york, the one that did go off in the dumpster, we still dont know what that was, pipe bombs or Pressure Cookers are something else. That one appears to be fully consumed by the explosion. Even so, there are bits and pieces left. Theyll be working to reconstruct those to try to figure out what kind of device it was. So they got a lot to go on here. Theres a considerable amount of luck here, joy, if you step back and think about this. The one in new jersey went off when apparently the bomb makers thought people were running by but were not because the race was delayed in its start. So it went off at 9 30 when no one was standing around and it did not go off completely. So theres a lot leftover from that. The second device in new york on 27th is intact. Thats a big boost. Secondly, youve been talking about Surveillance Video with richard. New york city is a sea of cameras, surveillance cameras, people with their own cameras. Thats an additional investigative source that the police will be exploiting fully. So theyve got a lot to go on here, but they havent reached any conclusions yet. Either whether the new york and new jersey incidents are the work of a same person or group or whether the two devices in new york were planted by the same person. When you talk about surveillance cameras, you think about the Boston Marathon bombing where you were able to look at all of these different views of the area and try to locate Common People or similar people. Just before we let you go, pete, you know, were talking about this and making a lot of pres presumptions. Theyre really right now just trying to, what, just determine what types of devices, whether they had any relation, but they dont have threads to connect these together, is that correct . Correct. Pete williams, really appreciate it. Joining me now, terror analyst malcolm nance. We have a lot here between Richard Engle and pete williams. Youve got the fact that you had a bomb go a pipe bomb go off unsuccessfully from the point of view of the people who did it in new jersey, and that race actually did have some significance to the u. S. Military. What does that tell you . First off, it appears to be a copy cat of the Boston Marathon bombing. I know that seaside park. Its a narrow spit of land that theres only really one way in on a bridge. Where that race would be run is on a lynniinear street. Youre going to leave some kind of physical evidence. So thats one type of bombing. Another thing is, its down in central jersey. So you have to transit your way from your bomb factory, wherever that is, to that point. If its going to be related to the devices that went off in new york city, were going to see a match between those two lines of where the bombs came from originally. Theres going to be evidence that shows theyre going to have similarities. Doesnt matter whether its a Pressure Cooker, doesnt matter whether its pipe bombs up in new york city, theres going to be some commonality with that. Whether they used smokeless powder, homemade explosives, black electrical tape. Were going to know that very soon. Is there as much cctv cameras strewn around the place as there would be lets say in new york . Certainly not as much as in new york city. But theres still shops and stores. Theres going to be complete teams tasked between the new jersey state police, the batf, the fbi, joint Terrorism Task force for that entire region. Theres going to be people combing through that to see are there individuals just walking up there. You have to deliver that device. It has to come in a transport bag. Backpack, handbag, briefcase, whatever. Its going to be seen in one way or the other. Is it a team of bombers . You dont know. Same type of people seen in the same place, different people seen in the same place. The one on 23rd street, it had to been let me put a pin in real quick. I want to wrap up with the new jersey one before we move onto new york city. The kind of bomb, that is the one that did go off. Is that something that an amateur, just somebody sitting at home watching youtube trying to figure out how to make a pipe bomb with no real ties to terrorism, could an amateur create Something Like that . Well, sure. If you read the study of explosive devices detonated in the United States every year, theres over 1,400 bombings a year in the United States. But only 10 of them use pipe bombs. Theyre a very specific signature. Most of them that go off are pyrotechnics in jugs just being used for fun. But real Weapons Systems are manufactured by these people. Its amateur, but then amateurs can be aspirational. Timot Timothy Mcveigh was an amateur. Does that mean that it will be difficult to figure out if its a similar type of bomb to the one that was unexploded found in the dumpster . No, theyre going to be able to reconstruct that bomb in its entirety. Theyre going to have teams walking up and down every inch of that street. If it was a Pressure Cooker bomb like the one found on 27th street, it has an effect. The top will blow and fly like a fris by, but the main container will shrapnel out inside that trash can. They are recreate it through physical recreation or 3d model. If its pipe bombs, thats easy. They have end caps. End caps fly. Experienced bomb techs are now coming to put their eyes on this and theyve seen everything. What if in reconstructing the exploded bomb on 27th street, it turns out it is a different type of explosive device from the unexploded device in the dumpster . You either have a bomb master who is thats what we call the person who builds the device. Even if hes an amateur. May be using different techniques to make it appear there are different bomb makers or he may be experimenting in the types of Weapons Systems he wants to delivery. New York Governor Andrew Cuomo is addressing reporters now on the scene in manhattan. Lets listen. I have with me senior subway staff david knight and tony abdallah. Mta teams have been on site since late last night inspecting the subway structure and relative station. We have just completed a walking tour of the 23rd street station with Governor Cuomo, reviewed our inspection and structural inspection policies and procedures. Its important to note that the blast was not in proximity to the subway structure. We have teams that have inspected both the 23rd and 6th and 23rd and 7th and 23rd and 8th street subway stations. Id like to introduce Governor Cuomo. Thank you very much. First, let me begin by thanking frank and ronnie and the whole team at the mta, as well as all the First Responders who have done an extraordinary job since this explosion happened yesterday evening. As everybody knows, there was an explosion on west 23rd street. Theres significant Property Damage on both sides of the explosion. 29 people were injured. There were no fatalities, something to give thanks for today. Because when you see the amount of damage, we really were very lucky that there were no fatalities at that time. We just inspected the subway station, the path station in the immediate area to see if there was any damage done from the explosion to the subway station, the tunnels, et cetera. And were happy to report that there was no damage. So the mta is ready to be up and running as early as tomorrow to return to full service for those stations. There may be certain entrances and exits that are closed depending on where the investigation is at that time. But well we will keep you up to date on that. There is ive been briefed by all the relevant agencies. At this time, there is no evidence of an International Terrorism connection with this incident. But but it is very, very early in the investigation and its just starting. The fbi has brought the evidence that theyve collected from the site of the explosion as well as the bomb that did not detonate. They brought that to quantico. Theyll be studying that. There was also an incident in seaside park, new jersey. Theyre also taking that material to quantico to review that material also. I spoke with governor christie this morning. Were coordinating resources between new york and new jersey to see if theres anything we can learn. The main is the joint Terrorism Task force. And thats up and operational. But the bombs that were in seaside, new jersey, appear to be different than the ones that were in manhattan. As i mentioned, the response by the First Responders was extraordinary. You know, you drill all the time and you run exercises all the time, but its still different when it happens. Ive spoke to mayor de blasio. The nypd did a great job. The fbi has done a great job. Homeland security, new York State Police, fire department, everyone really worked together and is coordinating on the investigation. The we have no reason to believe at this time that there is any further immediate threat, but just to err on the side of caution, we will be deploying close to an additional 1,000 new York State Police and National Guard people to police the bus terminals, airports, and subway stations. Again, just to err on the side of caution. And i want new yorkers to be confident when they go back to work on monday that new york is up and running and were doing everything we need to do. And i feel comfortable that this additional deployment will help do that and is prudent on this occasion. The bottom line on this is, number one, whoever placed these bombs, we will find and they will be brought to justice. Period. You have the finest Police Agencies in the world when you come to new york. And we will find who planted these explosives and they will be punished. Number two, we will not allow these type of people and these type of threats to disrupt our life in new york. Thats what they want to do. Were not going to let them do it. This is freedom, this is democracy, and were not going to allow them to take that from us. So feel safe. Everything that needs to be done is being done and more. And were going to enjoy new york and were going to go back to work tomorrow just like we do on any monday morning. Can you clarify what devices were taken to quantico . There was the Pressure Cooker and the device in the dumpster. Were they both sent to quantico . We were told they were sent to rodmans neck. The evidence that is now being gathered is going to quantico. I believe the seaside park bombs are in route to quantico. The unexploded device from new york may not yet have made it to quantico, im not sure. We know that there was that [ inaudible question ] they were both similar in design. Lets let the fbi do their investigation. Again, this is very early. Theyre just getting the devices. Theyre just starting the investigation. So once we get the investigation, well have all the facts and then we can speak intelligently. Mayor de blasio said last night there was no evidence this was connected to terror. What are you hearing . I believe the mayor was saying t