U.N. peacekeepers patrolling southern Lebanon have faced a dramatic surge of "aggressive behavior" by Israeli forces over the last year, including drone-dropped grenades and machine-gun fire, according to an internal report seen by The Associated Press.

The report by one of the 48 nations that together have more than 7,500 peacekeepers in southern Lebanon says the number of incidents jumped from just one in January to 27 in December. The hilly frontier zone where the UNIFIL force patrols has seen decades of cross-border violence. Israel and Lebanon's Hezbollah fought a full-scale war in 2024.