A senior Iranian diplomat in London said three people have been arrested for attacking an Iranian lady who went to a polling station in Birmingham to vote in the 13th presidential election.

Iran PressEurope: Mehdi Hosseini Matin said in his Twitter account on Saturday that "We are in contact with the lady and her family (husband and son) who were beaten by cowardly terrorist elements on the election day in Birmingham."

"Her attackers are still threatening them," he said, stressing that Iran's embassy in the UK will frankly follow up the issue.

A number of counter-revolutionary terrorists brutally assaulted an Iranian lady living in the UK, seriously injuring her head. Following the incident, rescue teams and the police arrived at the scene and recorded the incident.   

A small number of counter-revolutionary groups gathered in front of various polling stations set up by Iran's representative offices abroad and tried to disrupt the voting process.

In London, they insulted voters and attacked them.

Matin had earlier told IRNA that despite the problems created by dissident groups with certain terrorist backgrounds, voter turnout was quite favorable.

On Saturday, the Iranian Foreign Ministry summoned the British ambassador in Tehran Rob McAir to voice protest towards such behaviors in the UK.

The British ambassador was also told that the UK government and police had failed in their duty to ensure the security of polling stations and voters.

Judiciary Chief Ebrahim Raisi was announced on Saturday as the winner of the June 18 presidential election in Iran, scoring 17,926,345 votes.