It was not immediately clear who was responsible for the attack. The Israeli military denied any of its fire had harmed people within the site.
More than 20 people were killed in southern Gaza on Sunday near an American-Israeli aid distribution site, according to Palestinian health officials, as hungry Palestinians gathered en masse hoping to receive some food from the facility.
It was not immediately clear who had opened fire in the southern Gaza city of Rafah. The Palestine Red Crescent Society said its paramedics had evacuated at least 23 killed and 23 wounded from the area, all with gunshot wounds.
The Israeli military said it was not aware of any injuries caused by Israeli fire “within the humanitarian aid site,” but did not immediately rule out shooting nearby. Hamas accused Israeli forces of attacking people who had gathered to seek food. The New York Times could not verify the circumstances of the attack.
Over the past week, Israel has launched a contentious plan to overhaul aid distribution in Gaza. Israeli officials say the new system run mainly by American contractors of four sites in southern Gaza would prevent Hamas from seizing the food, fuel and other goods, but aid agencies have criticized the initiative.
Huge crowds of Gazans have headed for the new aid sites, hoping to receive a box of food supplies. While some days have gone relatively smoothly, there have also been chaotic scenes, including one instance in which Israeli forces fired what they described as warning shots.
The United Nations and other major humanitarian relief groups have boycotted the sites, accusing Israel of wielding aid as part of its military strategy. U.N. officials said there was little evidence that Hamas systematically diverted relief. Critics in Israel have warned the effort could be the first step toward establishing formal Israeli rule over Gaza.