Beirut, Feb. 15 -- A senior officer from the United Nations Interim Force in Lebanon (UNIFIL) was injured and three UN vehicles were set on fire on Friday during clashes near Beirut's airport road, local media and officials said.

Violence broke out when a group of young men attacked a UN-marked vehicle, assaulted its occupants, and torched three UNIFIL cars, Lebanon's National News Agency reported. The Lebanese army intervened.

Hezbollah-affiliated Al-Manar TV said masked individuals carried out "suspicious movements" to provoke unrest.

UNIFIL said its deputy commander was injured and demanded a "full investigation" by Lebanese authorities.

Acting Army Commander Major Hassan Odeh told the UNIFIL commander the army opposed any attack...