The Mitiga airport in the eastern district of Tripoli was closed after being attacked by Haftar's so-called Libyan National Army (LNA). Libya's government, backed by the United Nations, the Government of the National Agreement (GNA), quickly denounced the airstrikes and labeled them war crimes.
There are also battles for the international airport of Tripoli, which is 15 miles south of the city center for years not in operation. The GNA admitted on Monday that it had temporarily lost control of the site to Haftar's fighter.
"The Haftar forces attacked Tripoli, mainly from the south, four days ago, and had come so far as to control Tripoli International Airport," a GNA representative told CNN Monday. "Since yesterday and today, on Monday, the Haftar forces have been pushed back and Tripoli secured."
The same official said militia from the coastal towns of Misrata and Zawia, which are not under the direct control of the GNA, deployed troops as part of the counteroffensive against the LNA to the capital.
The United Nations said 3,400 people had been displaced in the uproar since the arrest of Haftar LNA's troops on Tripoli Thursday. According to Libya al Ahrar TV, which quoted Libya's Ministry of Health, twenty-one people were killed in the conflict and 27 injured.
The UN and France have shown support for GNA leader Fayez al-Sarraj on Monday. Haftar is seeking to leave the seat.
United Nations Secretary-General Ghassan Salame met Sarraj at his Tripoli office to discuss how the UN support mission in Libya "can help at this critical and difficult point," UNSMIL said on Twitter [MeanwhileFrancehassaidthatitwantsSarrajtoremaina"keyplayer"inongoingpeacenegotiationsbetweentheGNAforcesandHaftars
"France wants the Sarraj government to remain a key player and seeks to try and conclude the peace process negotiated in Abu Dhabi," a spokesman for French President Emmanuel Macron told CNN.
The European Union pleaded Monday for a humanitarian truce, one day after warring parties had ignored a United Nations call for a two-hour stalemate to pull US troops from Libya amid violent violence
Express concern over Libya, urged Federica Mogherini, the EU's chief foreign policy representative, "the full implementation of the ceasefire, the evacuation of the To enable civilians and the injured from the city and to avoid any further military action and further military escalation ". 19659002] The emergency services were unable to reach any victims or civilians in the violence. According to the United Nations, refugees and migrants are particularly vulnerable in prisons. UN spokesman Stephane Dujarric said in a statement on Monday that the fighting had damaged power lines and that the battle had damaged the power lines.
"We have made it clear that we oppose the military offensive of the Khalifa Haftar forces and call for the immediate cessation of these military operations against the Libyan capital," he said in a statement on Sunday.
In the eight years since Moammar Gaddafi was deposed and killed in the 2011 conflict, Haftar was one of the few henchmen to undermine the descent of the nation.  In the city of Benghazi, Haftar has control over most of eastern Libya and targets Tripoli.
UN Secretary-General Antonio Guterres was in Benghazi last week to hold talks with Haftar to urge for an international peace agreement. but left empty-handed. After their meeting, Guterres said he left Libya "with a heavy heart and deep concern, and I still hope it will be possible to avoid a bloody confrontation in and around Tripoli."
The United Nations reiterated Guterre's calls for a political solution Monday.
Nada Bashir of CNN in London and Saskya Vandoorne in Paris contributed to this report.