Forces loyal to Libya's UN-recognised government said Saturday they seized three barracks from fighters aligned with strongman Khalifa Haftar south of the capital, in an apparent new victory against their rival.
Gnounou, in a statement, said Haftar fighters were fleeing, but GNA forces "continue to pursue" them.
Saturday's announcement comes days after Ahmad al-Mesmari, a spokesman for Haftar's forces, said his fighters would pull back from some positions south of Tripoli.
Haftar's forces have suffered a series of setbacks since April when GNA fighters -- backed by Turkey, a supplier of drones and air defences -- ousted them from two western coastal cities.
And on Monday the GNA said its forces had seized a strategic airbase from the Haftar camp.