Hezbollah has pounded northern Israel with 140 rockets, a day after the militant group’s leader vowed to retaliate against Israel for a mass bombing attack, the Israeli military and the militant group said.

Daily exchanges of fire between Hezbollah and Israel have been destructive, disruptive and sometimes deadly. An escalation could risk starting a wider regional conflict.

Israel has launched airstrikes on Hezbollah positions in Lebanon, hours after Hezbollah leader Hassan Nasrallah vowed retaliation for deadly explosions that tar