The Hamas-run government said Sunday that the Israeli military attacked a Gaza refugee camp on Saturday night, killing at least 38 people, as calls for a cease-fire by the Arab world were rejected by the United States and Israel.

With the death toll in Gaza mounting, pro-Palestinian demonstrators staged protests in cities around the world on Saturday, calling for an end to the nearly monthold war.

Gaza health officials said on Saturday more than 9,488 Palestinians have been killed in the war, which began when Hamas fighters launched a surprise attack on southern Israel on Oct. 7, killing 1,400 people and taking more than 240 others hostage.