Security forces Tuesday detained a man suspected of involvement in the 2013 south Lebanon clashes, and another man over the 2014 Syria border battle, in separate operations.
The army said in a statement that "a unit arrested in Sidon Firas Abdul Latif Hakawati for his involvement in the 2013 Abra (near Sidon) battle."
The two-day battle led to the deaths of 18 soldiers and about 40 supported of radical cleric Ahmad al-Assir, who was arrested last month after more than two years on the run.
Separately, General Security announced the arrest of a Syrian national for contacting "terror" groups entrenched on the outskirts of the northeastern border town of Arsal.
According to a statement, the suspect also "collaborated with three Syrians and a Lebanese to provide militants with arms and ammunition in return of a certain amount of money."
Islamist militants have been holed up in the mountains surrounding Arsal since August 2014 when they fought a deadly battle with the army.
Later in the day, the Lebanese army said in a statement that a unit raided the houses of wanted suspects in Deir al-Ahmar in the eastern city of Baalbek, arresting one identified as Khaled Akram Amhaz, who is wanted for opening fire at an army patrol.
Two Kalashnikov rifles, a hand grenade, light ammunition, military equipment, communication devices and forged identification papers were confiscated during the raids.
