These are some of the recent pictures. Military military Officials Say israel struck over 500 targets overnight in gaza, with over 500 palestinians reported dead. A hamas spokesman claimed that four israelis whod been taken hostage had been killed by the air strikes, a claim that hasnt been verified. The Israeli Military says its regained control of all southern communities attacked by Palestinian Militants though it warned isolated pockets of fighters could still remain. Hamas has continued to Fire Missiles into israel, targeting jerusalem, Ben Gurion Airport near tel aviv, and ashkelon. Israels Iron Dome Defence System has intercepted many of the rockets. At least 700 israelis have been killed, including at least 260 at a Music Festival. Its believed around 100 israelis are being held hostage in gaza. There are reports that mediators from qatar have held contact with hamas officials to try to negotiate the release of israeli women and children taken into gaza. An unnamed israeli official has told reuters that there are no negotiations going on. Palestinian health Officials Say that at least 15 people have been killed by an Israeli Attack on the densely populated Jabalia Refugee Camp in gaza. The United Nations says that more than 120,000 people in gaza have now been displaced from their homes. Let me show you some of the live pictures because we have seen a relentless bombardment in gaza from the Israeli Military in the last hours. You can see here in the live pictures so many pockets of Smoke Billowing on the skyline. Meanwhile, israel is amassing its forces around the gaza strip and says it has called up thousands of reservists. In just a moment we will hear from israelis as they struggle to comprehend the scale of this attack and we will have more on that eu decision to suspend aid to palestinians, including from the united asian blue United Nations agency, which works with palestinian refugees, but lets start this coverage of this are with this report from our correspondence, yolande knell. Explosions. The heavy bombardment continues, volleys of palestinian rockets being fired from gaza. And israel is hitting back hard, saying hamas will pay the price for its surprise attack, the most deadly day the country has ever known. Im really sorry that you have to go through this. For ido, the horror has been playing out on his familys whatsapp group. His relatives live next to gaza and on saturday his cousin hid from hamas gunmen in her home. Im saying goodbye. She is sending this heart. And she is saying that. Im not sure were going to survive this. She did survive, but five members of the family are now missing, including her 80 year old mother and children. They are thought to be among 100 hostages now being held in gaza. This video appears to show this boy, who is nine, being snatched. Ido wants them released. Just get them out of this confrontation. It is not for kids, it is not for other people. I dont think there is any war ethics that were not violated here. Even war has rules and ethics, limits. Untiltoday, israels Security Forces have been fighting militants holding out in the south of the country. This infiltration and its bloody aftermath are unprecedented. It is, by far, the worst day in israeli history. Never before have so many israelis been killed by one single thing, let alone Enemy Activity on one day. And if you are americans and want to compare this to something in american history, then this could be a 9 11 and a pearl harbor wrapped into one. And in gaza, which has seen repeated rounds of deadly fighting with israel since hamas took over 16 years ago, this conflict feels dangerously intense. Translation now they are destroying homes without warning while people are sleeping, with the aim to displace and destroy, and to uproot them from this land. However, we refuse to be uprooted. We have firm roots in this land. Hamas now says that the latest air strikes here have killed several hostages, but there is no sign of a letup in the exchange of fire. The human toll here is immense. Yolande knell, bbc news, tel aviv. Lets turn to the issue of hostages because it is feared up to 100 hostages taken by hamas and taken back into gaza and in the last little while there was a report from the Reuters News Agency saying that hamas officials in qatar had been looking at potential prisoner swaps. It is worth just repeating what the israeli officials have talked to reuters about because they have said that there are no negotiations under way. That is an israeli official speaking on the condition of anonymity to reuters. But certainly not giving any detail that suggests those initial reports were right. But certainly, that is an issue, the whole issue around hostages that is dominating so much of the focus in israel as they weigh up just how to respond. This, of course, is one of the responses, the military action on the ground, we have seen, of course, the build up of israeli reservists and military on the borders. But of course a lot of strategy potentially hampered by that issue of hostages. There is disbelief in israel that hamas did manage to seize so many hostages. Lets get the latest on that aspect with our security correspondent, gordon correra. A Music Festival in the desert that turned into a scene of slaughter. As many as 260 people are thought to have been killed here on saturday morning. And some others taken. This footage shows a hamas gunman who appears to lead away a hostage. The exact number of hostages seized across israel is unknown, but estimates put it at around 100. Amongst them are thought to be this woman, thought to have been taken from a kibbutz on saturday, as her son told the bbc. 0ur saturday, as her son told the bbc. Our understanding is that she is kidnapped. You know, we didnt identify her yet on the other side and no one contacted us to say, hey, we have your mum. Lets talk. That didnt happen. We have your mum. Lets talk. That didnt happen we have your mum. Lets talk. That didnt happen. Hamas headquarters in gaza has already didnt happen. Hamas headquarters in gaza has already been didnt happen. Hamas headquarters in gaza has already been destroyed didnt happen. Hamas headquarters in gaza has already been destroyed by i gaza has already been destroyed by israel, but the hostages will have been disbursed in panels and hideouts. They are an important Bargaining Chip and in the past they have been used to negotiate the freeing of hamas prisoners from jails. And their presence may also complicate Israeli Military plans. Israeli tanks have been massing near gaza. Reservists called up. And now the question is whether Israeli Forces will now enter the densely populated territory. We forces will now enter the densely populated territory. Forces will now enter the densely populated territory. We already seen a mass of israeli populated territory. We already seen a mass of Israeli Military populated territory. We already seen a mass of Israeli Military response i a mass of Israeli Military response to this attack. I think we will see more over the coming days. They will be a big question around a Ground Invasion of the gaza strip. That would, of course, be incredibly costly and probably very bloody. A costly and probably very bloody. A number of hostages in gaza makes a Special Forces raid to free them nearly impossible and it would require the type of intelligence that israel seemed to lack when it was caught by surprise, leaving few options. Gordon correra, bbc news. Well, as well as all of the action on the ground, weve been seeing the military action. Israel is also imposing a full siege on the gaza strip, but that announcement came a little earlier in the day and it came from the Defence Minister. Have a listen. Translation we came from the Defence Minister. Have a listen. Translation a listen. Translation we are enforcin a listen. Translation we are enforcing a a listen. Translation we are enforcing a total a listen. Translation we are enforcing a total blockade a listen. Translation we are enforcing a total blockade on i a listen. Translation we are enforcing a total blockade on gaza. No electricity, no food, no water, no gas. It is all closed. We are fighting beastly people and are acting accordingly. That fighting beastly people and are acting accordingly. Fighting beastly people and are acting accordingly. That was the announcement acting accordingly. That was the announcement of acting accordingly. That was the announcement of the acting accordingly. That was the announcement of the siege. Acting accordingly. That was the announcement of the siege. No | acting accordingly. That was the announcement of the siege. No power, no water, no food getting in. That is what the minister was saying. Let me show you some of the pictures from gaza, the impact some of the israeli response has had. There you see some of the flattened buildings and of course the palestinian authorities saying more than people now have died in the various israeli strikes, 560 is the number that they are telling us and just some of the wreckage, just some of the aftermath. The israelis say they send out sms messages before, they dont target civilians, but this is the impact of on the ground of some of their action. We have been watching even in the last hour of this programmejust watching even in the last hour of this programme just the relentless strikes on gaza city. As we continue to watch these pictures, let me bring in tamara, who is director of external relations and spokesperson for the united relations relief and works agency for the refugees in the east. Thank you so much for being here with us. Your assessment in terms of what we are currently seeing play out . ~. ~ , what we are currently seeing play out . I, out . We are currently seeing playing out . We are currently seeing playing out mostly a out . We are currently seeing playing out mostly a very out . We are currently seeing playing out mostly a very large out . We are currently seeing playing j out mostly a very large displacement of people in gaza into. Just for some background, the un agency for palestine refugees, operates a network of schools, Health Centres and other basic services in buildings and installations across the gaza strip. In terms of conflicts, and sadly the gaza strip witnesses conflicts regularly, this is the sixth or seventh conflict since the 2008, In These Times everyone makes schools available as shelters for people who want to search for safety for themselves and their families. Search for safety for themselves and theirfamilies. So, as of this afternoon, my colleague told me that p afternoon, my colleague told me that up to 137,000 people are housed in 83 schools. Again, for background, a school can be turned into a shelter if it is prepared to receive people with availability of desalinated water, mobile toilets and showers and the availability of food and essential items such as blankets or mattresses. This is a huge humanitarian operation unfolded now. Just tell me the practicalities of how this works on the ground for someone like yourself. Is there any communication with the israelis to identify where these schools actually are . There was one report earlier in the day that a school had been hit. Tell me more about that and tell me more about how you try to relay information so there are not schools that have these civilians inside that end up becoming a target. Civilians inside that end up becoming a target. Like any un auen in becoming a target. Like any un agency in a becoming a target. Like any un agency in a context becoming a target. Like any un agency in a context where becoming a target. Like any un | agency in a context where there becoming a target. Like any un i agency in a context where there is becoming a target. Like any un agency in a context where there is a conflict, they communicates the buildings and installations to the warring parties, precisely to reiterate that these are protected installations. The blue flag is what people, civilians look for for protection and this is why situations of conflict like the one now in gaza, people do come into our schools because they fear that where they live in their Apartment Blocks in the buildings they might be under attack. Sadly, 1a of our buildings and assets have already sustained damage, including one about schools yesterday, but fortunately no one got killed in these attacks. However, three children, boys that go to schools in gaza tragically lost their lives already and one of my colleagues works in the design and Construction Department in gaza also lost his life yesterday when a building near his house collapsed and collapsed on his own house. His family is injured and in hospital, so situation can touch anyone, we are in Constant Contact with our colleagues in gaza, we worry about them, but the most important thing for us now is to make sure that our installations are safe and they can provide a safe haven to those who are seeking refuge and safety. My sympathies in terms of you losing colleagues in this conflict with the last couple of days as we continue to see the live pictures in another huge plume of smoke. Wejust to see the live pictures in another huge plume of smoke. We just played the Defence Minister describing the siege that israel has now imposed on the gaza strip. Your response to that, as a topline, this notion that everything is going to be cut off . There is something called humanitarian response and humanitarian response and humanitarian access, even in situations of conflict, where humanitarian agencies like the un, unrwa and even the International Community of the Red Cross Movement should be allowed access, they should be allowed access, they should be allowed access, they should be allowed access to people who are, in order to evacuate them, take them to hospitals and we all as humanitarians should be allowed to do ourjob and to support those civilians who are in gaza, including through the distribution of food, but also the provision of basic services and Health Centres and hospitals and even in schools, if it is possible to open the schools. figs is possible to open the schools. As you are talking, i am looking at a picture of the skyline of gaza city and i can count eight different massive plumes of smoke overjust the skyline of the picture that we are showing. Israels Prime Minister has said two people to get out. In terms of the practicalities of getting out, is that possible . It is alread getting out, is that possible . It 3 already extremely difficult getting out, is that possible . It 1 already extremely difficult under normal circumstances for gaza people to get out. There are two crossings into and out of gaza that they can use, that some of them can use. One is into egypt and for context, there are 2. 2 Million People living on the strip. It is one of the most densely Populated Areas in the world. 1. 7 million of them are palestine refugees and these are our beneficiaries, people who use the services of unrwa. Currently there are around 150,000 of them in 88 unrwa schools, so it is very difficult for a dozen to get out or to flee. R difficult for a dozen to get out or to flee. , i. Difficult for a dozen to get out or to flee. N ,, to flee. Let me ask you if your reaction to to flee. Let me ask you if your reaction to the to flee. Let me ask you if your reaction to the news to flee. Let me ask you if your reaction to the news we to flee. Let me ask you if your reaction to the news we have | to flee. Let me ask you if your. Reaction to the news we have just heard in the last half hour or so from the European Commission, the suspension of eu aid to palestinians. Your thoughts about that announcement . fiur palestinians. Your thoughts about that announcement . Our thoughts are that announcement . Our thoughts are that we at unrwa that announcement . Our thoughts are that we at unrwa are that announcement . Our thoughts are that we at unrwa are a that announcement . Our thoughts are that we at unrwa are a un that announcement . Our thoughts are that we at unrwa are a un agency. I that announcement . Our thoughts are l that we at unrwa are a un agency. We operate with a mandate from the un general assembly, so we execute what the International Community, including the eu and un member states, governments, countries tell us and what they have told us so far is as long as there is no solution to the israel palestine conflict, unrwa must be able to continue running its network of 700 schools, 145 Health Centres and so much more, including social protection, across the region. So we do hope that any government positions throughout any of the countries that support the palestinians do consider unrwa to be a un agency and continue to enable it to play its role with funding, without funding, we would not be able to continue our services. Yes. A final thought able to continue our services. Yes. A final thought because able to continue our services. Yes. A final thought because you will have seen flare ups in this conflict over the decades, but in terms of the magnitude of this, the seams unlike anything we have seen in recent times. How worried are you about what might lie ahead . Titer . About what might lie ahead . Very worried because about what might lie ahead . Very worried because wh