An Associated Press update from reporter Sam Mednick in Tel Aviv: Israel says one of the bodies handed over by Hamas is not that of a hostage. The mix-up adds pressure on a fragile ceasefire now in its third day. Meanwhile, funerals for returned hostages were held in Israel, while dozens of Palestinian bodies were also returned to Gaza for identification. The UN says aid convoys are still not reaching enough people in Gaza, despite agreements to open crossings for hundreds of trucks.