At least six people have been killed in the eastern Libyan city of Benghazi after clashes broke out between armed protest groups and Libyan special forces.
Local news media reported that the armed group attacked military offices and government buildings in the city overnight, leading the troops to stage a counterattack.
Residents in the area reported heavy gunfire and explosions during the early morning hours.
All six fatalities are believed to be from the special-forces troops.
The Libyan Defense Ministry has sent reinforcements from the capital, Tripoli, saying it would "not tolerate" attacks on police and army offices.
Thirty-one people were killed last week in clashes between a militia group and protesters in Benghazi.
Based on reporting by dpa and Reuters