Gaza residents break into U.N. warehouse for supplies as Israeli barrage continues

A man stands amid the rubble of a building in the aftermath of Israeli bombing in Rafah in the southern Gaza Strip on Sunday. (Mohammed Abed/AFP via Getty Images)

Thousands of Gaza residents broke into warehouses and distribution centers of the United Nations Palestinian refugee agency, grabbing flour and "basic survival items," the organization said on Sunday.

"This is a worrying sign that civil order is starting to break down after three weeks of war and a tight siege on Gaza," the organization said in a statement.