A 13-storey residential block in the Gaza Strip collapsed on Tuesday night after being hit by an Israeli air strike, witnesses said. Video footage showed three plumes of thick, black smoke rising from the tower, its upper storeys still intact as they fell. The tower houses an office used by the political leadership of Gaza’s Islamist rulers, Hamas. Electricity in the area around the building went out, and residents were using flashlights. Shortly after the attack, Hamas and the Islamic Jihad group said they would respond by firing rockets at Tel Aviv. Air raid sirens and explosions were heard around the city and ... (full story)