The Palestinian government said that the Israeli military attacked a Gaza refugee camp last night, killing at least 38 people, as calls for a ceasefire by the Arab world were rejected by the United States and Israel, Reuters reports.

Israel continued to strike Gaza Strip by air, sea, and ground overnight. Gaza health officials said Israeli air strikes destroyed a cluster of houses in the Maghazi refugee camp in central Gaza.

Salama Marouf, head of the Hamas government media office, told Reuters the Israeli strike in Maghazi killed at least 38 Palestinians and wounded 100. A Palestinian news agency had earlier reported 51 dead.

Marouf said an unknown number of people remained missing and rescue workers were trying to search for them under the rubble of the destroyed houses

Reuters could not independently verify his account.

The Israeli military did not immediately respond to a request for comment. Israel says it is targeting Hamas, not civilians, and that the fighter group is using residents as human shields.