WRAPUP 1-Iran upholds Ahmadinejad victory, says matter closed

* Iran's top legislative body confirms Ahmadinejad win

* Five British embassy staff released, four held

By Fredrik Dahl and Parisa Hafezi

TEHRAN, June 30 (Reuters) - Iran confirmed Mahmoud Ahmadinejad as president and said a row over his June 12 re-election was over, leaving opponents who cried foul with few options.

Iran's top legislative body, the Guardian Council, said a partial recount on Monday had disproved complaints of irregularities by pro-reform opponents, who said the count was inadequate and that only annulling the election would do.

Riot police beefed up their presence in the capital Tehran but there were no signs of major unrest late on Monday, in contrast to protests that erupted when Ahmadinejad was first declared victor of the June 12 vote.

State media say 20 people died in that violence which the government and opposition blamed on one another. Pro-government Basij militia and riot police broke up the protests.

"The secretary of the Guardian Council, in a letter to the interior minister, announced the final decision of the Council ... and declares the approval of the accuracy of the results of ... the presidential election," state broadcaster IRIB said.

The poll and its turbulent aftermath have exposed splits in Iran's political establishment and plunged the country into its deepest crisis since the 1979 Islamic Revolution.