A Palestinian checks a truck loaded with humanitarian aid from the US as it arrives in the Palestinian town of Rafah through the Kerem Shalom crossing between Israel and the southern Gaza Strip on August 6, 2014. Israeli and Palestinian delegations agreed to extend the 72-hour ceasefire for three more days. The ceasefire, which came into effect on August 5, has brought relief to both sides after 4 weeks of fighting killed about 1,800 Palestinians and 64 soldiers on the Israeli side. Photo by Abed Rahim Khatib/Flash90

A Palestinian checks a truck loaded with humanitarian aid from the US as it arrives in the Palestinian town of Rafah through the Kerem Shalom crossing between Israel and the southern Gaza Strip on August 6, 2014. Israeli and Palestinian delegations agreed to extend the 72-hour ceasefire for three more days. The ceasefire, which came into effect on August 5, has brought relief to both sides after 4 weeks of fighting killed about 1,800 Palestinians and 64 soldiers on the Israeli side. Photo by Abed Rahim Khatib/Flash90

Palestinians look at a part of a missile fired from Israeli air force earlier in Rafah in the southern Gaza Strip, on August 6, 2014. Israeli and Palestinian delegations agreed to extend the 72-hour ceasefire for three more days. The ceasefire, which came into effect on August 5, has brought relief to both sides after 4 weeks of fighting killed about 1,800 Palestinians and 64 soldiers on the Israeli side. Photo by Abed Rahim Khatib/Flash90

Palestinian electricity company workers drag a power line many of which were destroyed following an earlier Israeli air strike in Rafah in the southern Gaza Strip, on August 6, 2014. Israeli and Palestinian delegations agreed to extend the 72-hour ceasefire for three more days. The ceasefire, which came into effect on August 5, has brought relief to both sides after 4 weeks of fighting killed about 1,800 Palestinians and 64 soldiers on the Israeli side. Photo by Abed Rahim Khatib/Flash90