Palestinians sleep at a United Nations school, where people who fled heavy Israeli shelling in the Shejaia neighbourhood sought refuge during fighting, in Gaza City. Israeli forces killed at least 10 Palestinian militants on Monday after they crossed the border from Gaza through two tunnels, the military said, as the death toll from the two-week conflict passed 500. The overnight raids lifted the Palestinian death toll to 484, mostly civilians, since fighting started on July 8. Israel says 18 of its soldiers have also died along with two civilians