Leading Zimbabwean opposition presidential candidate Nelson Chamisa has made what's thought to be his first public appearance since Wednesday's violence in the capital, Harare.

Mr Chamisa has been seen at one of the city's hospitals where he was visiting some of those injured in the clashes with security forces.

Three people died in the violence.

On Tuesday, a day after the presidential election, Mr Chamisa's MDC Alliance said he had won and alleged that the vote had been rigged.

The electoral commission has until Saturday to announce the result.