Israeli military strikes killed dozens of Palestinians across the Gaza Strip on Sunday, health officials said, as Egypt hosted an Israeli delegation for a new round of talks in a bid to secure a truce with Gaza's Hamas rulers. The warring sides have stepped up negotiations, mediated by Qatar and Egypt, on a six-week suspension of Israel's offensive in return for the proposed release of 40 of 130 hostages still held by Hamas militants in Gaza after their Oct. 7 attack on southern Israel.