loud explosions. the loss of life is fuelling anger on both sides. this attack on the 7th of october is a proper before—and—after moment. it opens a new chapter in the palestinian—israeli conflict. with israel on the verge of a ground invasion of gaza, could this crisis engulf the whole middle east? explosion. you could hear, tack—tack—tack—tack. pack—a—packa, tack—tack—tack. thinking, ok, that's unusual. and i could hear it getting closer. just after sunrise on october 7th, hamas gunmen entered be�*eri kibbutz in southern israel. he whistles quietly. thomas hand had just woken up. so i thought, ok, i'll go in to my bomb shelter and actually close the door. on our telephone, we've got loads of messages back and forward from the kibbutz, from members saying, "they're in my house. send the army. where's the army?" a few kilometres away, in another kibbutz, kfar aza, shaylee atary was at home with her husband yahav and baby daughter shayha. there was bombing in really early, early morning. and yahav told me, "honey, relax. ok, keep calm." and i said, "honey, i think i'm going to die." and he said, "we're not going to be killed today." men shouting. yahav tried to stop the attackers getting into their home. while shaylee made a run for it. iran through the house with no shoes, no phone, nothing, with the child on my hands. and i thought they were on the front house. so i thought we will be...shot. so i, i tried to run very fast. yoni asher was at home near tel aviv when the attack started. early that morning, he got a call from his wife, doron. she told me that there are alarms and they are also hearing explosive, and they went into the safe room. they heard the gunshots from outside. his wife and daughters, raz and aviv, were i70km away in another kibbutz, called nir oz, celebrating a jewish festival with family. and the conversation got disconnected and... ..later on, i tried to, i tried to reach her and her mother and couldn't get them. this is the home of yoni's mother—in—law, where his wife and children were staying. there's a real sense of, smell of death here, and there's a huge amount of blood still on the floor, children's shoes. it's smashed up. it looks like a big struggle went on here. a lot of broken glass. some were burned and some after the terrorists left, they ran away. you can... i won't describe it because it's too... too painful. how many people do you think died here? i think around 90 people. hamas launched simultaneous attacks on more than 20 israeli communities that day. this was a mass attack, well—planned, well—equipped. you can definitely see that they invested a lot of money, and in training. and we failed. we failed...to protect our people. the hamas gunmen came from gaza. first elected in 2006, hamas then seized power in a bloody battle with palestinian rivals. rocket attacks and raids on israel led the uk government to declare them a terrorist group. the military wing of hamas believes in armed resistance as the way to liberation and that it's the only way. with the aim in mind, or at least the ambition that all of historic palestine will be restored and liberated. when israel was created after the second world war, hundreds of thousands of palestinians fled or were forced from their homes. many went to gaza. the borders are under israeli control and it's considered occupied territory by the united nations. israel imposed siege on gaza for the last 16 years, depriving people from regular electricity, regular clean water. israel conducted five wars on them, during which time much of the infrastructure have been destroyed. hamas has on numerous occasions attacked the state of israel with rocket attacks, with missile strikes. but it has never achieved, what it has never done, is an attack on the scale that we saw on the 7th of october. israel is at war. it was forced upon us in the most brutal and savage way. but though israel didn't start this war, israel will finish it. israel launched operation swords of iron. loud explosion. fighterjets began striking what israel said were hamas targets. in one of the world's most densely populated areas, civilians also felt the full force of the bombing. israel is not conducting a war on hamas. israel is conducting a war on the palestinian people, on the 2.3 million people who are stuck there in gaza. as the first bombs were dropping on gaza, thomas was still trapped in his home. did you wonder yourself, where was the army? oh, god, yeah. yeah, every hour, every, every minute. normally, we have a really quick response to these things. they were nowhere, they were absolutely nowhere. thomas�*s eight—year—old daughter emily was at a sleepover with friends nearby. but hamas gunmen were roaming from house to house and he couldn't get to her. and then i stopped thinking about time. actually, time it becomes irrelevant. you're tense... ..you're scared, you're shaking sometimes, stiff with fear the other times. hours after the attack began, yoni still couldn't get hold of his wife. he turned on location tracking for her phone. we tracked it. it appears to had a route from the community near oz, to khan younis, which is inside gaza. it's a few, several kilometres, and that's what the location showed us. chanting and shouting. israel says hamas took 222 hostages into gaza. that afternoon, yoni saw a video posted online. i saw my wife. some of the hamas men puts a cover on her head and as the camera moved to the right i saw my older girl raz, i identified herfor sure. purple dress, long golden hair. men shout. afterfleeing her home, shaylee and her baby found refuge with a neighbour. when the army eventually regained control, there was no news of her husband, yahav. they didn't find his body. and i hope that he's kidnapped like a lot of our families with children that are over there because it's the best option. like, why didn't i told him, "you fool, come with me. don't be a hero now." i should... this is what i thought after. like, why didn't i fight with him and tell him, "let's leave them alone. let's run away." after 12 hours, thomas was finally rescued. two days later, he discovered what hamas had done to his daughter. someone from the kibbutz rang me up and said, "i need to talk to you." i thought, "here we go. here we go." and i was relieved. the weirdest thing for a parent... ..to hearthat their child is dead... ..and you're relieved. i just... i knew she wasn't in gaza. i knew she wasn't terrified out of her life. i knew she wasn't going to be... ..in any more pain or stress. it was just all over for her. more than 100 bodies were discovered in be�*eri. and looking at this scale of destruction, it's not hard to see why. hamas burnt, mutilated and murdered in a coordinated and targeted attack that day. i spoke to a hamas representative, osama hamdan, who's based in lebanon. hamas killed many israeli civilians, including women and children, in the most brutal way. how can this ever be justified? well, how do you justify the killing of palestinians in gaza? but before that, before that... women and children. how do you justify killing the palestinians for the last 75 years? but the fact is that we've seen the pictures. i've been to the places. many israeli civilians were killed in the most brutal manner by hamas. you can't deny that. excuse me, excuse me. i don't, i don't buy that from you. i don't buy that from the israeli side. six days after the hamas attack, israel dropped leaflets on northern gaza, telling palestinians to move south. hamas told them to stay put. israel's completely sealed its borders with gaza. it's impossible for me to go. so palestinians are filming what's happening there, for us. incoming missile roars. explosion. attacks over— and over again and again. explosion. it's very close from us. child: papa. roshdi al—sarraj lives with his wife, shorouq... baba. ..and baby daughter dania in gaza city. explosion. his father's the mayor and roshdi is a documentary film—maker. they just attack again - and again, over and over. huge air strike around the lower area now. . they hope it will be safe. he's decided to stay and record his personal experience. there's just been an air strike metres from his home. chaotic shouting. children are among the casualties. there's a number of victims. injured and killed people. i another victim alive. an old woman. - i don't know if she will live. shouting. a lot of people inside... ..are alive, still alive. man wails. roshdi doesn't know how many of his neighbours were killed. israel says in the first six days of the conflict, it's dropped 6,000 bombs on gaza. we are going to attack hamas. hamas�*s infrastructure is embedded in the north. their... their arms depots, their underground tunnel networks, their communications, their command and control. we don't want to see civilian casualties and we don't target civilians. we target hamas�*s military machine. but if you want me to tell panorama that there won't be civilian casualties in war, that's irrational. that's impossible. it's very serious. it's absolutely serious. the situation in gaza is absolutely serious. they're striking back at palestinian population, not at hamas only. and that's not the way you do things. not every palestinian in gaza is hamas or supporting hamas. siren. this is al—shifa hospital in gaza city. in the grounds, a makeshift camp for people whose homes have been destroyed. radwan mekdad is here with his extended family. his mother's 90 years old. yoni is still waiting for news of his wife and daughters being held in gaza. how are you doing? i'm going to the fight of my life. and i will not give up on my baby girls. i will not leave them. he's doing a series of media interviews, hoping for his family's release. the only feeling that i don't have in my heart is hate. even for hamas? i don't... i can't hate anyone right now. i can't explain to you why. i can't feel hate in my heart right now. children are children. children are innocents. no child deserve... ..any harm. the failure to prevent the hamas attack has shocked and angered israelis. this was organised, obviously, months... ..in the planning. we've invested millions in the security framework there in the south and we've said, "no, they can't cross the border," and they did. hamas destroyed surveillance posts and overran army positions. around 300 israeli soldiers have been killed. gunfire. i think across our national security establishment, there was a feeling that we had successfully deterred hamas and that hamas was becoming a more rational actor. it's clear that it was an intelligence failure. that's a fact. they took us by surprise. sameh murad's a cameraman living and working in gaza city. sameh�*sjust said goodbye to his wife dinah, daughters miyar and mirna, and his brother. they're on a truck heading south when sameh gets news of an explosion. sameh believes the truck was hit by an israeli missile. israel says it hasn't attacked civilian convoys. sameh was still filming at the al—shifa hospital as casualties from the truck blast came in. dinah was taken to intensive care, but doctors couldn't save her. these are the last messages she sent to her husband. then another ambulance arrives. sameh's daughters are alive. another hospital, this one in the south. israel told palestinians it would be safer here. when israel completely sealed the border, medical supplies, water and fuel weren't allowed in. israel says the blockade won't be lifted until hamas frees the hostages. in the last few days, a small amount of humanitarian aid has been allowed in — 3a trucks so far. the un says gaza needs hundreds more. there have been protests against the air strikes in the west bank and eastjerusalem, israel's palestinian neighbours, and more widely across the region. this attack is a proper sort of before—and—after moment. it opens a new chapter in the palestinian—israeli conflict, and it could well open a new chapter in the middle east and middle east geopolitics in general too. there are concerns about what iran might do. it's long supported hamas. iran has assumed the mantle of being the leader of regional resistance against the state of israel. the regime in iran has made this opposition to israel a cornerstone of its ideology. on israel's northern border, iran also supports hezbollah in lebanon. hezbollah is well—armed and has also been designated a terrorist group by the uk government. since the hamas attack, there have been daily exchanges of fire between israel and hezbollah, fuelling fears of a wider conflict. we're watching closely. they could escalate. the iranians might be interested in encouraging them to do so. we don't want it, but we're prepared. our troops are there and we will hit back, and hit back hard. israel says more than 1,400 people were killed in the hamas attacks. health officials in gaza say more than 5,000 palestinians have been killed. around 200 hostages remain captive in gaza. yoni is still waiting for news of his family. for thomas, there's guilt about not being able to protect his daughter, emily. should i have realised earlier? i couldn't have realised earlier. i knew something was unusual, but... ..i missed my window of opportunity... ..to go and get her. and i'll regret that for the rest of my life. woman sings. shaylee�*s burying her husband yahav. she found out, four days after the attacks, he'd been killed by hamas. she sobs. i think israel will neverforget this. i feel so many people are dead and are kidnapped and are hurt that i think israel will never be the same. israel's intensifying its air strikes in its mission to destroy hamas. in gaza city, it's becoming even more dangerous. give me hug! roshdi recorded this video last wednesday. baba? clatter. burst of gunfire. hey, baba. baba. nearby explosion. loud explosion. frantic chatter. baby cries. yesterday, there was another air strike close by. roshdi's wife and daughter survived. roshdi al—sarraj was killed. tens of thousands of israeli troops are massed on gaza's border. this is one of the most dangerous moments in this decades—old conflict. what happens next will affect the lives of millions. live from london. this is bbc news. the un warns civil order may be breaking down in gaza — as thousands of residents break in to warehouses for food and other basic items. very sadly, people are getting frustrated. they're getting hungry as the siege, the three—week—long siege, continues. israel is continuing with its military operation — moving more tanks and infantry into gaza. our other main story — matthew perry — one of the stars of the hit tv show friends — is found dead at his home in los angeles. hello and welcome. i'm maryam moshiri. the united nations�* relief agency for palestinians — unwra — has warned that civil order is starting to collapse in the gaza strip. it comes after warehouses containing flour and other basic