 A multi-story residential building and a tower house in Hamas and other media outlets in Gaza City collapsed after Israel warned the occupants in advance to evacuate. Another structure was heavily damaged in the airstrikes. The building is located in the busy shopping area of Ghazan. Other airstrikes hit was Israel's military set where rocket launch sites, Hamas offices and homes of Hamas leaders. Hostilities between Palestinian militants and Israeli army intensified in the third day of fighting.