Editor’s note: Iranian authorities have barred journalists for international news organizations from reporting on the streets and ordered them to stay in their offices. This report is based on the accounts of witnesses reached in Iran and official statements carried on Iranian media.

Iran’s election oversight body on Monday declared the hotly disputed presidential vote to be valid after a partial recount, rejecting opposition allegations of fraud and further silencing calls for a new vote.

State television reported that the Guardian Council presented the conclusion in a letter to the Interior Minister following a recount of a what was described as a randomly selected 10 percent of the almost 40 million ballots cast June 12.

The “meticulous and comprehensive examination” revealed only “slight irregularities that are common to any election and needless of attention,” Guardian Council head Ahmed Jannati said in a letter, according to the state TV channel IRIB.

Opposition leader Mir Hossein Mousavi claims he, not incumbent President Mahmoud Ahmadinejad, was the rightful winner and has called for a new election, something the government has repeatedly said it will not do. “From today on, the file on the presidential election has been closed,” Guardian Council spokesman Abbas Ali Kadkhodaei said on state-run Press TV.

Mousavi supporters have taken to the streets in protest after the election, outraged by official results that gave Ahmadinejad the victory by a roughly 2-1 margin. Police and the feared Basij militia has taken increasingly harsh measures against the demonstrators, prompting widespread international criticism.

The recount conducted Monday had appeared to be an attempt to cultivate the image that Iran was seriously addressing fraud claims, while giving no ground in the clampdown on opposition. Supreme leader Ayatollah Ali Khamenei and the Council already had pronounced the results free of major fraud and insisted that Ahmadinejad won by a landslide. And even if errors were found in nearly every one of the votes in the recount Ahmadinejad, according to the government’s count, still would have tallied more votes than Mousavi.

U.S. Secretary of State Hillary Rodham Clinton on Monday questioned the recount’s utility.

“They have a huge credibility gap with their own people as to the election process. And I don’t think that’s going to disappear by any finding of a limited review of a relatively small number of ballots,” she told reporters in Washington. Asked if the United States would recognize Ahmadinejad as Iran’s legitimate president, she said “We’re going to take this a day at a time.”

News of the partial recount comes as Ahmadinejad on Monday ordered an investigation of the killing of a young woman on the fringes of a protest. Widely circulated video footage of Neda Agha Soltan bleeding to death on a Tehran street sparked outrage worldwide over authorities’ harsh response to demonstrations.

Ahmadinejad’s Web site said Soltan was slain by “unknown agents and in a suspicious” way, convincing him that “enemies of the nation” were responsible.

The developments appear to show that Iran’s leaders are concerned about international anger over the election and opposition at home that could be sustained and widespread — but is trying to portray the country as victimized by foreign powers.

Throughout the postelection turmoil, Iranian officials have bristled at even mild criticism from abroad. But the tensions escalated Sunday when Iran announced it had detained nine local employees of the British Embassy on suspicion of fomenting or aiding protests.