The Israel Defense Forces announced Sunday morning it was conducting strikes against the terror group Hezbollah in Lebanon after the group had attacked northern Israel.

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.