France, Germany and Britain meanwhile said Israel's seven-week blockade on all imports to Gaza was "intolerable."

Israeli strikes on the Gaza Strip killed at least 17 Palestinians, mostly women and children, and destroyed bulldozers and other heavy equipment that had been supplied by mediators to clear rubble. Separate strikes killed two people in Lebanon.

Israel ended a cease-fire with Hamas last month and has vowed to continue the war until all the hostages are returned and Hamas is either destroyed or disarmed and sent into exile.