Israel said it had struck Hezbollah's intelligence headquarters in the Lebanese capital Beirut on Sunday, while officials in Gaza said they were still trying to recover bodies from the rubble after an Israeli strike that killed dozens.

Palestinian officials say hundreds of people have been killed in Israel's two-week operation in northern Gaza, and that the health sector is close to collapse.

Gaza's Hamas-run health ministry has said at least 87 people were killed and more than 40 injured in Saturday's Israeli air strike on the city of Beit Lahiya in the north of the Palestinian enclave. The ministry said a number of people were still under the rubble after a residential area was hit.