The army on Saturday fired tear gas to disperse a crowd of Hezbollah supporters that again blocked the road to the airport after the group officially called for a "popular sit-in" to denounce Lebanon's banning of two Iranian planes from landing in Beirut.

Video footage shows tear gas canisters falling on peaceful protesters during a speech by Hezbollah official Mahmoud Qamati, but army sources told TV networks that the tear gas was fired after other protesters "blocked the airport road and attacked army vehicles."