Palestinians reported a deadly Israeli strike on a Gaza City area school serving as a shelter on Saturday, as U.S. Secretary of State Antony Blinken was due to hear Arab demands for a cease-fire in a meeting in Jordan.

Witnesses said an Israeli strike hit Al-Fakhoura school in Jabalia refugee camp, killing and wounding many of the evacuees who had taken shelter there. At least 15 people died and dozens more were wounded, Mohammad Abu Selmeyah, the head of al-Shifa Hospital, said of the school incident.

Pictures of the aftermath showed broken furniture and other belongings lying on the ground, patches of blood and people crying.