Israeli warplanes blasted bases of the pro-Iranian Hezbollah for a second day Monday, killing 12 people.
Police said eight civilians and four combatants of Hezbollah, or Party of God, were killed. Twenty-eight others, including 10 fighters, were wounded, they said.
A police spokesman said four U.S.-built F-4 Phantom fighter-bombers mounted two bombing runs, 10 minutes apart, on Louaize and Melita in southern Lebanon.
The attacks came a day after Israeli jets had flattened a Hezbollah base two miles to the south. Three fighters were killed and 12 wounded in Sunday's raid.
In Jerusalem, the Israeli military command said its warplanes struck targets used by Hezbollah for "organizing and launching attacks" and that all jets returned safely.
Later Monday, Israeli gunners traded heavy artillery fire with Hezbollah positions north of Israel's self-proclaimed buffer zone in southern Lebanon, police and U.N. sources said.
A U.N. source said that at one point, the international peacekeepers monitored a barrage of 12 Katyusha rockets fired by Hezbollah into the security zone, which Israel established in 1985.
Voice of the South, the radio of the Israeli-backed South Lebanon Army militia, said three people were killed and five wounded in the barrage.