Government tanks deployed in Beirut after at least five people were wounded by gunfire in the city on Monday after a night of tension following the funeral of an intelligence officer killed by a car bomb.
The shootings were on the edge of Tariq al-Jadida, a Sunni Muslim district close to Shi'ite suburbs in the south of the Lebanese capital.
The army closed several roads in the area.
Residents had earlier reported heavy overnight gunfire around Tariq al-Jadida between gunmen armed with rifles and rocket-propelled grenades.