Israel has unleashed a series of air attacks on the Gaza Strip that killed nearly 90 people, including many children in their sleep, as its main ally the United States once again vetoed a United Nations Security Council resolution demanding a ceasefire. At least 66 people were killed in an attack early on Thursday that hit a residential neighbourhood in Beit Lahiya, in Gaza’s besieged north, Palestinian health officials said. Hussam Abu Safia, the director of the nearby Kamal Adwan Hospital, told Al Jazeera most of the victims “were asleep when they were killed”. “A very large number of casualties has arrived, and there are still many bodies hanging on the walls, ceilings. It’s mostly children and women,” he said in a voice message.