Mahmoud Basal, a spokesman for Palestinian Civil Defense, an emergency services organization, said some of the bodies found in Khan Younis were handcuffed, shot in the head or wearing detainee uniforms. He accused Israeli forces of killing and burying them. Israel’s military declined to address those claims on Tuesday, and they could not be independently verified.

On Tuesday, hours after the top U.N. human rights official called for an inquiry into the mass graves, the Israeli military said that its forces had exhumed bodies that were buried by Palestinians “in the area” of Nasser Hospital and examined them as part of an effort to locate hostages. It did not comment on the report of the mass grave at Al-Shifa.