Iran's President Hassan Rouhani is on course for a second term in office, preliminary results show. Out of 26 million votes counted so far, he has won 14.6 million - or more than half, officials announced on state TV, BBC reports.
Rouhani's main challenger lodged complaints about alleged voting irregularities. Ebrahim Raisi accused supporters of Mr Rouhani of hundreds of acts of propaganda at voting booths, which are banned under electoral law.
Raisi, 56, is a conservative cleric with a background in the judicial system. Reuters reported that Mr Rouhani was on course to win more than 50% of the vote in the first round, thus avoiding a second-round run-off.
Results from urban areas - much more likely to support Mr Rouhani - have not yet come in.
