The Gambia's defeated President Yahya Jammeh has asked for a deadline for him to leave office or be forced out by UN-backed forces to be extended until 16:00 GMT on Friday.
By land, sea and air, Gambia is surrounded. A total of 7,000 men will participate in the mission to re-establish democracy in Gambia
The earlier deadline of noon passed as the Guinean and Mauritanian presidents arrived in Banjul for last-ditch talks.
Mr Jammeh's elected successor, Adama Barrow, was sworn in as president at a ceremony in Senegal on Thursday.
Troops acting in support of President Barrow have paused their advance.
The forces from the Economic Community of West African States (Ecowas) regional grouping are backed by the United Nations.
