Earlier in the day, militants opened fire on a peaceful protest by supporters of Shia political parties Hezbollah and Amal. The attack was followed by an hourslong firefight between armed groups and the military. As a result, at least six people were killed and over 30 were wounded.
"We will not allow a repetition of the events in Tayouneh, under no pretext. The army and security forces will do their duty to maintain stability and protect the citizens," Aoun said.
The president said that the recent events reminded him of the 1975-90 civil war, recalling that the Middle Eastern nation has committed to not letting anything of kind happen ever again.
Hezbollah and Amal, on their part, stated that the ill-fated demonstration was organized with the purpose of peaceful expression of opinion and blamed the attack on armed groups from the Lebanese Forces, a Christian party and former militia.
The Lebanese Forces leadership rejected allegations of its supporters being involved in today's violence.