The two main leaders in Libya’s civil war are in Moscow for talks on how to end months of fighting.
It is hoped both the UN-backed government and forces loyal to Russian ally Gen Khalifar Haftar will sign a ceasefire.
The talks are part of an initiative launched by Russia and Turkey at a summit in Istanbul last week.
A first tentative truce started on Sunday but both sides have accused each other of breaking it within hours.
On Monday, January 13, 2020 Russian and Turkish officials will first hold talks separately with the two warring sides, and later a meeting of all four groups is expected to follow.
The meeting underlines how Turkey and Russia are emerging as the critical players in the complex web of competing foreign interests in Libya, the BBC’s Moscow correspondent Sarah Rainsford says.
Over the weekend, German Chancellor Angela Merkel said Berlin later in January wanted to host another round of Libyan peace talks to build on the efforts by Turkey and Russia.