Dozens of rockets were fired from Lebanon into northern Israel, hours after Israeli airstrikes killed four senior members of the militant group Hezbollah, including a senior military commander.
The Israeli military said about 90 projectiles were detected, officials said, adding that some were intercepted but that the attacks caused several fires.
Taleb Sami Abdullah, 55, known within Hezbollah as Hajj Abu Taleb, was the highest-ranking commander killed since fighting began eight months ago.
His death comes amid rising tensions along the Lebanese-Israeli border, with Hezbollah stepping up attacks on northern Israel and Israeli airstrikes hitting deep inside Lebanon.
The militant group fired rockets into northern Israel after the attack (AP)
Sirens were sounded across northern Israel, according to Israeli media.
The Hezbollah official said Abdullah was the highest-ranking commander killed in Lebanon since the recent wave of violence along the Lebanon-Israel border began in October, adding that he was commander of Hezbollah's Nasr Forces, responsible for areas of southern Lebanon close to the Israeli border.
Israeli military attacks destroyed a house where Abdullah and three other officials were holding a meeting in Juwaya, about six miles from the border, late Tuesday.
Hezbollah officials said Abdullah was more senior than commander Wissam al-Tawil, who was killed in January.
Israeli air strikes in Lebanon have killed more than 400 people, mostly Hezbollah members, but also more than 70 civilians and non-combatants.
On the Israeli side, 15 soldiers and 10 civilians have been killed since the war in Gaza began.
