While Israel denied firing on the largest hospital, Al Shifa, saying people can evacuate safely.
Gaza health authorities said on Friday that at least 11,078 Palestinians, including 4,506 children, have died since Israel launched its retaliation for the October 7 terrorist attack by Hamas.
About 2,700 people have been reported missing and are thought to be possibly trapped or dead under the rubble.
Israel says about 1,200 Israelis were killed in the October 7 attack, a figure revised down from the previously reported 1,400.