Israel Bombs UN Headquarters In Gaza

Israeli artillery shells struck the U.N. headquarters in the Gaza Strip on Thursday, setting a food warehouse ablaze and drawing a sharp rebuke from the visiting U.N. chief who called it an "outrage." Another Israeli bombardment killed Hamas' head of security.

The attack added to a day of deadly chaos pitting Israeli troops against Islamic militants. Terrified residents huddled in shelters and stairwells, or scooped up toddlers and fled on foot.

After nightfall, shells landed near Gaza City's Quds Hospital, where many families had sought refuge, and the building caught fire, forcing staff to evacuate hundreds of people. According to a hospital medic, some patients were pushed down the street on gurneys; a few held white flags.