Nine Palestinian civilians were killed in an Israeli airstrike on a four-storey house in northern Gaza City, dpa quoted health officials as saying on Sunday. Two or three missiles fired by F-16 warplanes reduced the house in Sheikh Radwan neighbourhood to rubble, witnesses said. Ashraf Al-Qedra, Spokesman of the Hamas-run Health Ministry in Gaza, said the Palestinian death toll has now risen to more than 60, about half of them civilians. More than 500 were wounded, he added.