Lebanon’s caretaker prime minister, Najib Mikati, said his government will file a complaint to the U.N. Security Council after an Israeli drone attack Sunday evening killed a grandmother and three children. The strike came as Israeli and Hezbollah forces have been engaged in skirmishes along the border over the past month. Hezbollah fired rockets into northern Israel in response. The group has vowed to retaliate against Israel if it kills civilians in Lebanon.