Israeli helicopter gunships fired missiles at a building in the Khan Younis area of the Gaza Strip, reportedly injuring at least 12 people. Israeli military described the building as a weapons store used by the militant Palestinian group Hamas and said explosions were heard after the attack, indicating the presence of explosives. However, Palestinian witnesses said the missiles on Sunday targeted the home of Hamas member Abdul Salem Abu Musa who had left the building moments before the attack. In another development on Monday, an armed Palestinian was shot dead by Israeli troops near the main Erez crossing from the Gaza Strip into Israel, military spokesman said. The man had been wearing an Israeli army uniform and was aiming in the direction of soldiers, the spokesman said.