The Israeli military has fired artillery into southern Lebanon in what it said was retaliation for rocket fire from the Lebanese side. The exchange comes after Israel assassinated a top commander with the Lebanese group Hezbollah in Syria. Samir Kuntar was freed in 2008 after spending nearly 30 years in an Israeli prison for his role in the killings of three Israelis in a 1979 attack. Kuntar died Saturday when Israel bombed a residential building in a crowded neighborhood of Damascus. The attack reportedly destroyed the five-story building and killed an unknown number of civilians. Residents reported seeing the bodies of women and children in the rubble.