The North African country has been torn between rival administrations and a myriad of militias since the NATO-backed overthrow and killing of dictator Moamer Kadhafi in 2011. Chief among them are Sarraj's Government of National Accord, based in Tripoli, and a rival administration based in the east and backed by Haftar's self-styled Libyan National Army.
The leaders had agreed to a Paris-brokered deal in May 2018 to hold a nationwide election by the end of the year. But instability, territorial disputes and divisions in the oil-rich country delayed those plans. Talks in Italy in November laid bare deep divisions between the key power brokers, with some delegates refusing to sit side by side and Haftar snubbing the main conference to organise separate talks with international leaders.
Reacting to Thursday's announcement, Italy's Prime Minister Giuseppe Conte said he was following developments closely. "We worked so hard for this agreement," he said, "but the situation in Libya is such that we must wait until all actors have agreed".