Supporters of Haiti's government have held a peaceful march in the crowded capital calling for elections to be held.

Thursday's march attracted several thousand people to the streets of Haiti's largest city with a carnival-like atmosphere.

Many people wore new T-shirts emblazoned with the photo of Jovenel Moise, the outgoing president's chosen successor.

Haiti had been scheduled to hold a runoff presidential vote last weekend. But electoral authorities postponed it indefinitely amid violent opposition protests and allegations that the first round was marred by rampant fraud favoring Moise.

The threat of instability has prompted the Organization of American States to authorize a special mission to help Haiti's polarized factions negotiate a new date for the runoff.

President Michel Martelly is due to leave office Feb. 7.