Lebanon’s Hezbollah has launched over 100 rockets into northern Israel in response to ramped-up Israeli attacks that killed dozens of people in Beirut, including a veteran leader of the militant group.

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.

Israel claimed the death of a senior Hezbollah military official after a rare Israeli airstrike on Beirut as the death toll rose Saturday to at least 37 people, with dozens more wounded, shortly after Hezbollah pounded northern Israel with 140 rockets.