Gunmen take cover after fighting erupted in Beirut, Lebanon October 14, 2021. Tensions over a probe into last year's massive blast in Beirut burst into the worst street violence in more than a decade on Thursday, with six Shi'ites shot dead and gun battles reviving memories of the country's 1975-90 civil war. REUTERS/Aziz Taher

An army soldier takes position after gunfire erupted at a site near a protest that was getting underway against Judge Tarek Bitar, who is investigating last year's port explosion, in Beirut, Lebanon October 14, 2021. Bullets bounced off buildings and people ran for cover during bursts of gunfire which lasted several hours on what was once a frontline in the war. REUTERS/Mohamed Azakir

A man prepares to fire a rocket-propelled grenade during a gunfire in Beirut, Lebanon October 14, 2021. REUTERS/Aziz Taher

Shattered glass and debris are seen after gunfire erupted at a site near a protest that was getting underway against Judge Tarek Bitar, who is investigating last year's port explosion, in Beirut, Lebanon October 14, 2021. REUTERS/Mohamed Azakir

Army soldiers are deployed after gunfire erupted in Beirut, Lebanon October 14, 2021. REUTERS/Mohamed Azakir

Army soldiers patrol after gunfire erupted, in Beirut, Lebanon October 14, 2021. REUTERS/Mohamed Azakir