Israeli Defence Minister Israel Katz said the Israeli military had been instructed to prepare to expand its operation in Lebanon.

Israel launched an offensive against Iran-backed Hezbollah after it opened fire on March 2 to avenge the killing of Iran’s supreme leader at the start of the U.S.-Israeli war on Iran.

Israeli strikes have killed more than 600 people in Lebanon, and uprooted 800,000 more, Lebanese authorities say.

On Wednesday night, Hezbollah said it had launched dozens of rockets into northern Israel as part of a “series of operations,” indicating there could be more to come.