In a statement signed by 111 organizations, including Mercy Corps and Refugees International, the groups warned that mass starvation was spreading.

More than 1,000 Palestinians have been killed by Israeli forces since May while trying to get food in Gaza, mostly near food sites run by an American contractor, the U.N. human rights office said.

More than 100 charity and human rights groups say that Israel’s blockade and ongoing military offensive are pushing Palestinians in the Gaza Strip toward starvation