viewers in the united states and around the world. i'm max foster in london. ahead this hour, anger in the aftermath of a deadly strike on a shelter in gaza. we'll take you inside the former school being used to protect civilians. two weeks since the downing of flight 17, crash investigators are still being kept from the scene. gaza health officials say shelling next to a u.n. shelter

has left eight wounded but no deaths inside the facility. it's a close call just a day after 20 people were killed this a strike on another u.n. shelter. the u.n. blames israel for that. carl penhall has israel's response, and a look at the aftermath. but we warn you, some of the images you're about to see are graphic. >> reporter: northern gaza around 5:00 a.m. the u.n. school turned shelter for 3,000 people, just attacked. a u.n. employ took these cell phone images, breathing heavily, he races classroom to classroom. body count by flashlight. mutilated limbs swaddled in bloody rags. >> we saw the shells when they hit and shrapnel was falling like rain. i was so scared.

in a school filled with smoke, we poured water in our eyes just to see. >> one round crashed through the roof into the top floor. >> i just want to give you a point of reference about how big this hole is. the diameter is about the length of an ordinary broomstick. another round opening a hole about the same size as the other. witnesses say this is some of the shrapnel that peppered the school. the u.n. says it repeatedly notified israel and hamas of the accord nats of the shelter, most recently just eight hours before it was hit. cnn asked the israeli military if their forces fired on the school that was supposed to be a safe haven. >> what we found, there were mortars launched from nearby the school, and there was a crossfire, and indeed the idf engaged those mortar firing. we are currently reviewing the outcome in the tragic footage we've seen from this area.

we haven't ruled out that it was a hamas mortar that landed within the premises. >> but u.n. investigators tell cnn they have sufficient evidence to conclude israel was to blame. >> based on the initial elements, we have clear indications in the first assessment that we have, that three projectiles hit the school and on presenting and analyzing the pieces of shrapnel, we believe that we have all the elements in place to conclude that it was israeli artillery fire. >> reporter: israel has batteries of houtitsers aimed at gaza. these huge guns are capable of firing 100-pound high explosive shells the entire length of the gaza strip. israel admitted misfiring a mortar into another school shelter in bait han you know, less than a week ago. but the israeli military says the explosion could not have caused deaths.

a cnn visit showed multiple shrapnel marks and large quantities of blood. hospital staff told cnn 16 civilians died in the incident. >> enough is enough. now measures have to be taken. people who go to these places expect that they go there because they will be safe. and here's the confirmation that it appears that there is nowhere where you can be safe. therefore measures have to be taken by the israeli defense forces to ensure much better protection. >> the u.n. has condemned hamas for violating the rules of war, accusing its fighters of storing rockets in three other vacant schools. >> whatever was the case with these weapons certainly cannot be used as justification to explain why another school in which people were sheltered, displaced people were sheltered, had been targeted. >> israeli military says it does not deliberately target civilians. at the school gates, this bloody footnote to the tragedy.

donkeys and horses had ferried dirt poor families here, when their homes were turned into a battlefield. but war plotted in behind them. carl penhall, cnn, gaza. now to some shocking video from al manara media agency of a market attack on wednesday in gaza. hundreds of people were shopping when it happened. officials say 17 people were killed. a warning, the video is graphic and it may be hard to watch, but we think it's important for you to see. we're not showing it to make a point about the rightness or wrongness of the war for hamas or the israeli military, but it does show the reality of what ordinary people face when war comes to one of the densely populated places on earth. [ sirens and shouting ] [ huge booming sound ]

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the video speaks for itself. another sign the conflict isn't ending any time soon. israel has called up 16,000 additional reservists. 80,000 have been called up since the fighting started. there's overwhelming support inside israel for the military's operation against hamas. as sara sidner found out. >> from the tel aviv seashore to the israeli-gaza border and beyond, the show of support from israeli jews for netanyahu's war effort is clear, we're with you. hebrew signs say it with words. the people prove it with deeds. volunteers cook free meals with the sound of war booms behind them, in easy striking distance from gaza. >> this is who they're doing it for, the soldiers on the battlefield. the message, we are with you. two opinion polls done to measure support for israel's operation protective edge, revealed that up to 95% of israeli jews are against a ceasefire. and what they really want is hamas dealt with, once and for

all. >> hamas is terrorism. and terrorism, they hurt every corner in the world. we just have to put -- take them out from gaza. >> he says he's happy living side by side with palestinians in jaffa, but hamascya different thing. netanyahu's plan to destroy the tunnel network in gaza got a pat on the back in tel aviv. >> we have to continue because we have a lot of work to do there. otherwise, they will find a way to come inside, you know, all the tunnels and i don't know the name, and we have to destroy everything. >> reporter: for this young lady, it's deeply personal. she's to be married soon, but her fiance is a soldier on the front lines. he's in gaza somewhere and we're afraid. we're afraid, she says, we shouldn't stop fighting. we shouldn't compromise.

we set down with israeli's top intelligence agency about what it would take to fulfill the sentiment of those polled. >> it calls for conquering the entire gaza. >> which means reoccupation? >> reoccupation, no doubt. >> reporter: saying the price of that will be higher than the public realizes, costing lives and money. >> it means that we will have to stay in gaza with relatively largely deployed forces for two, three, four years. >> reporter: the former chief did not initially support netanyahu's decision to put israeli boots on the ground, but he admits something to us that spy chiefs rarely do. >> now i understand that i was wrong because only with this ground operation we could discover those tunnels. >> reporter: a political analyst says the support for netanyahu and his army chiefs is

remarkable. >> i can't remember a minister of operation, which has had so much support from the israeli people. >> reporter: but the polls did not include palestinians with israeli citizenship, sometimes referred to as israeli arabs. those we spoke to wanted to stop the offensive. but even israeli peace rallies demanding an end to the war have been met with protesters in support of pounding gaza until hamas is crushed. sara sidner, cnn, on the israel-gaza border. for information on how you can help both sides of the conflict, check out our website. we posted details on organizations who are assists civilians caught in the violence. we'll turn to the malaysia airlines disaster now when our special coverage continues. after the break, cnn takes you to the crash site, an awful scene. investigators are still struggling to get access to. >> you really have to stand here and see the things that people

wanted to take with them on holiday, and horrifyingly even now, smell the stench of decay to understand the urgency the relatives of those who died here must feel to get inspectors to this site and get some kind of closure.

surprise! happy birthday! [western stand-off music playing]

[whistling] announcer: preventing wildfires. that's all smokey wants for his 70th birthday. international investigators from the osce say they're on the move again today outside the city of donetsk, heading for the

crash site of malaysia airlines flight 17. heavy fighting in eastern ukraine has kept them from the wreckage for the past four days. the dutch prime minister and the osce are both calling for a ceasefire in the area so investigators can begin their work. cnn international correspondent nick paton walsh and his crew took another route to the crash site and found it littered with debris and the final possessions of lost lives. >> the road isn't easy. past shelling, eerie separatist checkpoints, but where it leads is harder still. in beauty surely nothing could spoil lies a horror still unresolved. 12 days since mh17 was blown out of the sky. it remains here, a monument to cruelty. to how 298 souls, some shipped in parts away on a separatist train, have yet to find complete rest. questions left. what or who else did they love?

what did they feel in their last moments? the silence in these field is that of a tomb, like sorrow and loss have isolated it from the war around it, but you really have to stand here and see the things that people wanted to take with them on holiday, and horrifyingly even now, smell the stench of decay to understand the urgency for relatives of those who died here must feel to get inspectors to this site and get some kind of closure. in the hour we were there, no separatists, inspectors, or ukrainian soldiers at this site, just distant smoke that explains why the inspectors' large convoy has not, for the fourth day running, got here. god save and protect us, the sign asks. not here. still wreaking of jet fuel. where you can see the heat of the inferno they fell from the sky in. strangers have tried to mourn.

the scene of this crime has been abandoned, evidence tampered with. what must be shrapnel holes, visible in the cockpit's remains. a wallet, emptied. a cell phone, looted. traces of day dreams that fell from the jet stream into a war whose daily horrors drowned out that which took their lives. whose blind hatred has yet to find space for the minor dignities they deserve. nick paton walsh, cnn, ukraine. >> matthew chance is in kharkiv, he joins us now live. there's word they're moving today. are they likely to get to the site? >> i think that very much depends on the security situation around the site. as we've been hearing from that report, there have been force clashes between the pro-russian rebels and ukrainian government

forces. not on the crash site itself but in the various towns that surround the crash site of mh17. despite appeals to the ukrainian government to halt their offensive, where they appear to be trying to surround the rebels in that area and take control for themselves that crash site. they've refused to do so. so the fighting continues. which means that without an agreement from the ukrainians and the rebels, to stop their fighting, it seems to me very unlikely that the osce, the investigators from the netherlands and australia, are going to be able to achieve what they've failed to achieve over the past four days. they're still trying, because evof the urgency to gather the human remains and repattiate them to the various countries and gain evidence of what happened to flight mh17. but while that fighting continues, you just don't think it's going to happen. >> so it's quite simplistic to blame the separatists for lack of access to the site.

actually, the ukrainian military is as much to blame at this point? >> well, both sides blame each other, clearly for this. and yes, it's not possible for us, i don't think, to lay the blame for this fighting at the foot of either the pro-russian rebels at this point or the ukrainian military. the fact is, an offensive is under way. the ukrainian military have been gaining territory, seizing territory back from the rebels in that area. i think with the motive of trying to secure access themselves, one of the motives, secure access themselves to the site, but also to encircle the rebels in the donetsk area itself. while the fighting continues, access to that site for a big convoy like that of the international investigators is going to be very hard to achieve. >> belarus is trying to

facilitate some sort of diplomacy around this as well. >> yes, that's something, a meeting that's scheduled to take place later today. it will be taking place in belarus, a neighboring country to ukraine. the russians will be participating, the ukrainians, the osce, also bee understand, a representative from the pro-russian rebels here in ukraine as well, with a few to try to broker a deal to gain access to that area. we'll see what the outcome of that will be. i expect later on today. in the meantime, there's another meeting taking place in the ukrainian capital, kiev. the parliament will be approving a constitutional change or looking at voting on a constitutional change to allow an armed force of australians and dutch troops to go to the crash site to secure the area there. but i feel that that initiative may have been taken over by events because initially you may remember one of the proposals was that a sort of multinational team be sent in there to secure the area. that's since been dismissed by

the dutch government as being not workable, because it would be too provocative to the pro-russian rebels. but yes, all the focus is on trying to get an agreement in those meetings in belarus, to gain access to the site. >> matthew, thank you very much indeed. coming up next on cnn, the current ebola outbreak is centered in west africa, but concern is growing in other parts of the world. the latest on the health crisis when we come back. let me get this straight... [ female voice ] yes? lactaid® is 100% real milk? right. real milk. but it won't cause me discomfort. exactly, because it's milk without the lactose. and it tastes? it's real milk! come on, would i lie about this? [ female announcer ] lactaid. 100% real milk. no discomfort.

economic news to report. argentina has crossed into default for the third time in 28 years. two days of talks in new york failed to avert a disaster. and they now fear a currency devaluation which could make inflation worse and lead to public anger. argentina's economy minister says two hold-out creditors rejected an offer he made to settle a payment dispute. >> let's check on the markets in asia. japan nikkei is currently down. the shanghai composite finished higher. with less than an hour to go until the end of trade. europe kicked off the new trading day at the top of the hour. right now it's a mixed picture.

liberia is introducing a painful new measure to control the ebola outbreak sweeping through parts of west africa. the government there has closed schools, shut down markets and put all non-essential staff on leave. remember, this outbreak is the deadliest on record. according to the world health organization, 672 people have decide from the disease since april. 319 in guinea, 224 in sierra leone and 129 in liberia. we'll explain why places as far as as hong kong are so concerned. >> people are dead with the ebola. >> the doctor has saved more than 100 patients from ebola, but he became another victim of the virus on tuesday. hailed as a national hero in

sierra leone, he's just one of dozens of health workers in west africa who have died on the front lines, fighting the deadly disease. globally concern over ebola is spreading even faster than the virus itself. >> well, obviously, this is a threat which we need to take seriously. >> this week, in england, a suspected case of ebola tested negative. top british officials held an emergency meeting to talk about how to prepare for any potential cases. >> by meeting to look at the issues, to evaluate the evidence, we are acting early, to make sure that we put in place, any necessary precautionary measures to keep the uk safe. >> reporter: hong kong, which has been hit before by outbreaks of the sars virus and bird flu is on high alert for ebola. >> we are very concerned about ebola virus disease in three west african countries. >> reporter: earlier this week a

welcome became ill but tested negative for the virus. hong kong has not imposed any travel restrictions, but has put early detection measures in place to contain any cases. the virus has killed one american, and infected two u.s. aid workers in west africa. but doctors say the risk of ebola spreading in the u.s. is remote, in part because it's not airborne. it can only pass from person to person through physical contact. >> even if we had a case introduced in the united states, the likelihood of extensive spread is extremely small. >> reporter: but even a small chance the virus could spread globally has many health officials concerned. fin ola sweeney, cnn. turning back to the crisis in gaza when cnn's special coverage continues. next, an in-depth look at hamas. how it came into being, and what it hopes to accomplish in the future. plus, angry backlash in the

europe and u.s. against israel's military operation in gaza.

you're watching cnn special coverage.

i'm max foster in london with a look at the hour's stop stories. as israeli air strikes and artillery pound gaza, militants continue their rocket fire into israel. palestinians say more than 1,300 people have been killed. israel reports 59 deaths. the u.s. and united nations are demanding more be done to protect civilians. israel's military tells cnn it's calling up 16,000 additional reservist, that's 86,000 reservists activated in a three-week old conflict. the u.s. has agreed to supply israel with more ammunition. it will come from the billion dollars stockpile the u.s. keeps in israel. international investigators say they're on the move again today outside of donetsk, heading for the crash site of malaysia airlines flight 17. heavy fighting in eastern ukraine has kept them from the wreckage for the past four days. for the third time in 28 years, argentina has defaulted on its debt. government negotiators were unable to reach a dl