United Nations, Dec 8 (IANS): The UN Security Council has called for a quick implementation of a political deal in Libya in order to stop fighting and form a national unity government in the country.

The 15-nation UN body on Wednesday said in statement that the council members "expressed their deep concern over the challenging political and security context in Libya and the serious political polarisation resulting in a deterioration of the security, economic and humanitarian situation", Xinhua news agency reported.

The council members "further expressed their deep concern over the recent escalation of violence in Tripoli, and called on all parties to immediately heed the Presidency Council's appeal to cease fighting," the statement said.

The statement further added that almost one year has passed since the signing of the UN-mediated Libyan Political Agreement, achieved between two rival Libyan parliaments, the internationally-recognised Council of Deputies in Tobruk and the self-proclaimed Tripoli-based General National Congress.

The Security Council reiterated its "grave concern about the terrorist threat" in Libya and "urged Libyans across the political and security divide to unite and join forces under unified command in their fight against the Islamic State in the service of their country and called on armed actors to halt violence against civilians," the statement said.