The Libyan authorities insist they are still in control, dismissing calls by an army general for a change of government which led to rumours of a military coup.
Major General Khalifa Haftar said he wanted to see the interim parliament suspended, urging the armed forces to “rescue” the country.
A “new road map” would be announced in the coming days, he added.
Prime Minister Ali Zeidan described as “ridiculous” suggestions that a coup had taken place, saying that Haftar was now retired.
The major general returned from exile to become a senior figure in the 2011 revolution but it’s not clear how much influence he now has.
Since the fall of Muammar Gaddafi the army has struggled to impose its authority in the face of rival factions and militias.
The capital Tripoli has reportedly been calm with no sign of extraordinary troop movements near government buildings.
Libya’s parliament the General National Congress has become increasingly unpopular and the country still has no constitution.