Western Tripoli areas saw heavy fighting late on Saturday and early on Sunday between National Mobile Force and an armed group of the general security apparatus, eyewitnesses reported.
The eyewitnesses added that the clashes in Ghout Al-Shaal and Al-Ghiran areas were triggered as anti-Khalifa Haftar forces' gunmen handed over a pro-Haftar fighter named Mohammed Al-Kashik to the mobile force.
Al-Kashik later denied the news of his detention on his Facebook page and then calm descended on the area.
Al-Kashik is pro-Haftar fighter who was involved in 2014 fighting in Tripoli. He then escaped to Zintan but is currently working at the general security apparatus headed by Emad Al-Tarabulsi, who was pro-Haftar but later joined the Presidential Council and was tasked in security posts in western Tripoli.
No official statements have been made yet about the fighting.