The UN agency for Palestinian refugees says six of its employees have been killed in an Israeli air strike on one of the schools it runs in central Gaza.
Unrwa said it was "the highest death toll among our staff in a single incident" since the start of the war between Israel and Hamas in October.
Hospital officials and the Hamas-run Civil Defence agency said earlier that at least 14 people had been killed in the strike on al-Jaouni school in Nuseirat refugee camp, which is being used as a shelter by thousands of displaced Palestinians.