Besieged Ivorian leader Laurent Gbagbo has been detained in the main city Abidjan and delivered to the headquarters of his elected successor. He reportedly surrendered to Alassane Ouattara's forces after French tanks advanced on his residence. Mr Gbagbo had been refusing to cede power to Mr Ouattara after losing November's presidential election. France said pro-Ouattara troops had detained him, but aides to Mr Gbagbo said it was French special forces. As they closed in on Mr Gbagbo's power base in Abidjan, UN and French attack helicopters targeted heavy weapons being used by his forces. Attempts to negotiate his exit failed, and his forces appeared to be making a comeback by the end of last week, even threatening the hotel used by Mr Ouattara. On Sunday, UN and French helicopters launched a new wave of air strikes, and on Monday French tanks were seen advancing on the residence.