The remarks reflect the volatile situation on the Israeli-Lebanese border, where deadly clashes between Israeli troops and Iran-backed Hezbollah terrorist fighters are fueling fears of a wider regional war while Israel invades the Gaza Strip.
"The resistance will respond double to any aggression that targets civilians," Ali Fayyad said at the funeral of the four Lebanese killed in the south on Sunday.
"It hasn't yet shown all its weight," he said, referring to the powerful Iran-backed group. He did not elaborate.
Lebanese authorities said an Israeli strike hit the car the family was traveling in on Sunday. Israel's military said its troops engaged a vehicle in Lebanon which was "identified as a suspected transport for terrorists" and it was looking into reports there were civilians inside. READ MORE