Yusuf Abd, who was in one of the crowds on the way to one of the distribution sites, describes how they came under "indiscriminate fire". When he looked around, he saw three bleeding people on the ground.
I couldn't stay and help them because of the bullets, he says.
Nasser Hospital reports that they have received bodies from several distribution sites. But also from the area around the newly established Morag corridor, which the Israeli military has set up between Khan Yunis and Rafah, where trucks with emergency aid were expected.
According to the UN's calculations, 859 people have been killed between May 27 and July 31 at distribution sites controlled by the heavily criticized Israeli-American organization Gaza Humanitarian Foundation (GHF). Hundreds more have been killed along the routes for UN-led food convoys.
Both GHF and Israel's military have in several cases said that they only fired warning shots and that the death toll is exaggerated. Neither of them commented immediately on Sunday's deaths.