several people appear to be injured, and trace gallagher is live with our breaking newsroom with more on this, trace? >> the number we're getting is 50 we talked to amtrak they are slammed right now, trying to get information out, the reason first responders are not on scene yet, this happened just a short time ago, the helicopters were able to get up in the air before the first responders got onscene. the train, some of the passengers said started to shake before it went off. we have seen a number of these types of derailments before usually more times than not, it's because the train hit something on the track, some kind of a truck or car that got on the track. in this case we don't see any indication there, we see the first signs of first responders. they're trying to triage they will go through and get the passengers out, and just like they do in a mash unit they will triage them, the worst injured to the lesser injured, they will treat them as follows, these amtrak trains and this one