Rana Jawad BBC North Africa correspondent, Tunis
Libya’s rivals have reached a “preliminary agreement to a roadmap” for elections.
The announcement was made by the UN acting envoy to Libya, Stephanie Williams, who is overseeing the week-long talks being held in neighbouring Tunisia.
The political peace talks started on Monday following last month’s ceasefire agreement signed between the warring sides in Geneva.
The UN has been keen to show progress at the political talks between dozens of Libyan representatives gathered in Tunis to determine their country’s political future.
Their task is to set a date for elections and to put together a transitional authority to oversee that process.
In a news conference at the end of the third day of talks here, Ms Williams said participants reached an agreement on a roadmap for parliamentary and presidential elections to be held within 18 months.
Although she described the step as a “breakthrough”, what could be the more difficult task of appointing a new transitional government and Presidency Council in the interim, has not been tackled yet.
The UN official said Thursday’s talks will focus on the “prerogatives and competencies” of that transitional body.