Ivory Coast: Laurent Gbagbo 'negotiating surrender'
Mr Gbagbo is sheltering with his family in the basement bunker of his residence in the main city, Abidjan.
Troops loyal to Mr Gbagbo's rival, UN-recognised President Alassane Ouattara, say they have surrounded the compound.
The UN says Mr Gbagbo's military and civilian advisers are leaving him.
Three of his generals - the head of the armed forces, the head of the police and the head of the republican guard - have opened negotiations, the UN told the BBC's Andrew Harding, who is on the outskirts of AbidjanContinued