The U.N. Security Council unanimously adopted Resolution 1701 in August 2006 as part of a cease-fire that ended Israel’s last war with Lebanon. The resolution sought to create a buffer zone in southern Lebanon to prevent fighting between Israel and Hezbollah, but has failed to keep the peace.

Lebanon’s capital city is returning to a cycle of violence and destruction just as it was beginning to stabilize after years of chaos.

Saturday’s attack completely demolished a multistory building in a densely populated neighborhood. Israel did not say who the strike’s target was.