UN Interim Force in Lebanon (UNIFIL) peacekeepers patrolling near the Israel-Lebanon border took "defensive measures" against two drones observing them, the peacekeeping force said in a series of posts to X/Twitter on Tuesday evening.
According to UNIFIL, the peacekeepers noticed that one of the drones had carried an "unidentified object" into a "range that constituted an immediate threat to the safety and security of peacekeepers."
"Following established procedures, the peacekeepers took defensive action against the threat," UNIFIL went on. "The drone then dropped a stun grenade that exploded about fifty metres away from the peacekeepers before flying toward Israeli territory."
The peacekeeping force further noted that no injuries were reported and that the patrol could continue.
UNIFIL claimed that the drones belonged to Israel and slammed Israel for violating the ceasefire.
It also noted that it had informed both the IDF and the Lebanese military on Monday of its operations near the border.
"Such use of armed drones is unacceptable," UNIFIL wrote. "We reiterate to the IDF its obligation to respect the Blue Line, ensure the safety of peacekeepers, and cease attacks on or near them."
The IDF has yet to comment on the incident.
UNIFIL denounces IDF over chemical substance drops near Blue Line
On Monday, the UNIFIL denounced the IDF for dropping non-toxic chemical substances near the Blue Line, which demarcates the line dividing Lebanon from Israel.
The IDF told UNIFIL on Sunday morning that it would carry out the aerial activity, dropping the substances, and noted that members of the force should "stay away and remain under cover."
However, this "forced" UNIFIL to "cancel over a dozen activities," the peacekeeping force said.
UNIFIL asserted that soldiers could not perform normal operations along approximately 1/3 of the Blue Line, and were only able to resume normal operational activity after nine hours.
After the incident, UNIFIL and the Lebanese Armed Forces collected samples for toxicity testing.