Ugandan opposition figure Robert Kyagulanyi, popularly known as Bobi Wine, has arrived at the nomination centre in Kyambogo in the capital, Kampala.

Police fired tear gas to disperse his supporters who turned up to support him on nomination day.

Armed police and military officers are standing guard outside the nomination venue.

Bobi Wine is presenting his nomination papers to the electoral commission to be cleared to challenge President Yoweri Museveni in next year's election.

So far, 10 aspirants are vying for the top job. Others include former army commander General Mugisha Muntu and former Security Minister General Henry Tumukunde.

One presidential candidate Patrick Amuriat has been arrested at the headquarters of his Forum for Democratic Change (FDC) party.