An Israeli airstrike rocked southern Beirut on Sunday soon after the military issued an evacuation warning for the Lebanese capital.

The attack raised concerns that the cease-fire that ended a war between Israel and Lebanese militants might be in jeopardy.

Israeli jets struck Beirut’s southern suburbs Sunday after issuing a warning about an hour earlier, marking the third Israeli strike on the area since a ceasefire took effect in late November. A huge plume of smoke billowed over the area after the strike.