Nearly 800 people have died trying to access aid in Gaza since late May, with most killed near the US- and Israel-backed Gaza Humanitarian Foundation’s distribution sites, the UN said Friday.

The comments came as the IDF ordered some Gaza City residents to evacuate ahead of operations there, and Hamas’s civil defense agency reported 18 people killed in Gaza on Friday, including 10 while waiting for aid in southern Gaza. It was not immediately clear if the aid seekers were killed in the vicinity of a GHF site.

United Nations rights office spokeswoman Ravina Shamdasani said the agency had recorded “615 killings in the vicinity of the GHF sites” since the GHF began operations on May 26 and through July 7.