The drone reportedly crashed in the border town of Alma Shaab, in the southern district of Tyre. The Lebanese Army rushed to the scene but couldn't reach the site of crash due to the rough terrain.
State-run media said that Israeli forces went on high alert near the technical fence, and military helicopters hovered overhead.
The UNIFIL patrolled areas adjacent to the crash site, according to the Daily Star.
Israel has erected a technical fence along stretches of the Blue Line, which was drawn up following Israel’s withdrawal from south Lebanon in May 2000. It is only a de facto border between the two sides and attempts to physically demarcate it have been hampered by conditions close to the line.
Israel repeatedly violates Lebanon’s airspace in contravention of UN Security Council Resolution 1701. Lebanese officials have filed complaints against Israel at the UN over such violations.
Israel sends drones that carry surveillance cameras that broadcast live information to a base over Lebanon on a regular basis. These drones and could be used to measure distances and locate attack targets.
Israel has bombed Syria on several occasions over the past couple of years.