Israel warned on Friday it would attack a building belonging to Hezbollah in a south Beirut suburb and ordered residents to evacuate, its first such move since a November ceasefire that has been seriously disrupted over the past week.

The Israel-Hezbollah conflict boiled over into all-out war in September as Israel carried out waves of airstrikes and killed most of the militant group’s senior leaders. The fighting killed over 4,000 people in Lebanon and displaced about 60,000 Israelis.