The Iran-backed group, whose leader Israel killed in an air strike on Friday, said its fighters launched a “rocket salvo” at Safed and a smaller location “in defence of Lebanon and its people and in response” to Israeli attacks on cities, villages and civilians.

The strike on power stations and a seaport, which killed four people, was the second known time that Israel has retaliated against the militant group’s attacks by striking in Yemen.

Israel said it killed Nabil Kaouk, the deputy head of Hezbollah's Central County, in an airstrike Saturday. President Biden said a regional conflict "has to be avoided."