The Palestinian death toll in Gaza has topped 600 as the Israeli siege has entered its third week. Most of those killed are civilians; more than 100 are children. Israel says it has lost 27 soldiers since the ground invasion began last week. Earlier today, Israel confirmed the remains of one of its soldiers presumed to have been killed in Gaza had still not been found. Hamas has said it captured the soldier. Meanwhile, U.N. Secretary-General Ban Ki-moon is due to arrive in Israel to push for a ceasefire. Earlier today, Ban met in Cairo with U.S. Secretary of State John Kerry, Egyptian officials and leaders from the Arab League. We will go to Gaza for more on the crisis after headlines.