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

DEIR AL-BALAH, Gaza Strip (AP) — An overnight Israeli strike on a school-turned-shelter in Gaza City killed 23 people, as Arab mediators worked on a proposal to end the war with Hamas that would include a five-to-seven-year truce and the release of all remaining hostages, officials said Wednesday.

The Israeli military accused Palestinian militant groups of exploiting civilians and civil properties for military purposes, an allegation Hamas and other factions deny.