Israeli forces in southern Lebanon on Sunday opened fire on protesters demanding their withdrawal in line with a ceasefire agreement, killing at least 22 and injuring 124, Lebanese health officials reported.

The U.S. said on Sunday that the agreement between Lebanon and Israel would remain in effect until Feb. 18, after Israel said on Friday it would keep troops in the south beyond the Sunday deadline set out in a U.

Israeli ceasefires with Hezbollah militants in southern Lebanon and Hamas in Gaza appeared to be on fragile ground Sunday as Israeli forces opened fire on Palestinians in both regions, killing at least 23 people and injuring dozens.