The foreign ministers of 25 Western nations have slammed Israel for “drip feeding” aid into the Gaza Strip, as the health ministry in the territory said that more than 1,000 people have been killed seeking humanitarian relief there since late May.

At least 73 Palestinians were killed on Sunday while trying to get food at distribution sites, officials said.

The World Food Program has condemned the Israeli army for firing on a humanitarian aid convoy, calling the attack “completely unacceptable.”