Dozens of people have been killed following Israeli strikes in Gaza, including at hospitals, as a United Nations chief warned action is needed to "prevent genocide". On Wednesday morning, Israeli airstrikes hit homes in Jabalia, in northern Gaza, killing at least 53 people, according to the Hamas-run health ministry. The Indonesian Hospital said 22 of those who died were children. The Israeli military refused to comment on the strikes, but had warned local residents to evacuate late on Tuesday