At least 20 people were killed in a crowd crush at an aid distribution site run by the Gaza Humanitarian Foundation (GHF), the controversial Israeli- and US-backed organization said Wednesday, the first time it has acknowledged deaths at one of its sites.

At least 20 Palestinians were killed on Wednesday at an aid distribution site run by the Gaza Humanitarian Foundation, in what the U.S.-backed group said was a crowd surge instigated by armed agitators.

At least 20 people were killed in a chaotic crush at an aid centre in southern Gaza on Wednesday, with the site's operator blaming "agitators" within the crowd and the territory's civil defence agency attributing the panic to Israeli gunfire.