The deadly attack by Hezbollah against an army base deep inside Israeli territory presents a major headache for Israel as it continues to struggle to defuse the threat from the Iran-backed militant group,

Hezbollah said the drone attack was in retaliation for two Israeli strikes in Beirut on Thursday that killed 22 people.

Hezbollah drone attack | Hezbollah attacks near Tel Aviv | Iran Israel war | Middle east | Israel's military said a Hezbollah drone had killed four soldiers at one of its northern bases Sunday, as it expanded its bombardments of Lebanon and troops battled militants across the border.