The UN-backed Libyan government is under siege from rebels led by General Khalifa Heftar.
As the rebels fight to take Libya’s capital, Sky News special correspondent Alex Crawford meets men and others believed to be youths who are being detained.
They are accused of fighting against forces that back the internationally-recognised administration.
The prisoners came walking out in single file, most with no shoes on their feet, some with their head bowed. These are some of the men, their captors claim, who were preparing to fight to take over the Libyan capital, Tripoli.
“You can talk to whoever you want,” Lieutenant Abdul Baset Shiva says to us. He is part of the Zawiya Security Directorate who captured the men on the outskirts of Zawiya, some 30 miles away from the city.
Several of the guards and police tell us the fighters came armed, in a convoy of vehicles and pickup trucks. They point out some of the vehicles parke