Saturday's official tally, based on 80% of the polling stations reporting results, indicated that Museveni has won 60.64% of the vote, Kizza Besigye, the opposition leader, 36.04% and the other three candidates sharing a little more than 3%.

Uganda's Electoral Commission said it had counted 5,792,915 votes.

More than 10.4 million people registered to vote and turnout was estimated at about 65%.

Voters on Thursday also elected 284 members of parliament.

The commission was expected to release complete, final official results on Saturday afternoon.

On Friday, the European Union mission reported that while Uganda's election was an improvement on past votes, it was still marred by serious problems.