An Israeli drone crashed in the northern city of Tripoli on Saturday, the army said, in the second such incident in three weeks.
"At around 8:30 am (0530 GMT), a drone belonging to the Israeli enemy went down in the port of Tripoli, and the army has taken the necessary measures," the military said in a statement, without elaborating.
A security official said the pilotless aircraft crashed into the sea.
"Fishermen had the impression a plane was falling down towards their harbor, close to the main port of Tripoli," said the source, who spoke on condition of anonymity.