A new round of negotiations brokered by the United Nations (UN) and aimed at easing tensions between different warring sides in the North African country of Libya has been delayed.

Diplomatic Libyan sources said that the second round of the talks would not be held on Monday as initially scheduled.

“Consultations to hold the second round of dialogue continue with the parties to reach agreement on the timing and venue. So, not tomorrow,” an unnamed diplomatic source said on Sunday.

Although a date was not set for the resumption of the talks, UN mission spokesman Samir Ghattas said efforts were underway to move the negotiations forward.

The talks between the country’s internationally recognized government and different militias were originally scheduled to be held on December 9, 2014, but have been delayed a number of times.

The first round of the talks, chaired by UN Special Representative in Libya Bernardino Leon, was held last September between rival lawmakers in the town of Ghadames.

Libya’s government and elected parliament moved to Tobruk after an armed group from Misrata seized the capital, Tripoli, and the headquarters of most government institutions last August.

The new Tripoli rulers have set up a rival parliament and government, which are not recognized by the international community.

About 120,000 Libyans have become displaced as a result of the unrest.

Last week, the internationally recognized Libyan parliament voted to boycott the talks if the rival legislature in Tripoli was invited.

Libya has been gripped by militancy and factional fighting since the ouster and assassination of longtime dictator Muammar Gaddafi in 2011. The militia groups that helped drive him out are now fighting for power and a share of the oil revenues.