US private equity founder reportedly detained in Russia

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Michael Calvey, co-managing partner of Baring Vostok Capital Partners, gestures during an interview at the company’s headquarters in Moscow, Russia, on Tuesday, April 4, 2011.

A U.S. citizen and private equity founder has reportedly been arrested in Moscow on suspicion of embezzlement.

According to Russian news agency IFAX, Michael Calvey, has been detained along with others in relation to the theft of 2.5 billion roubles ($37.5 million).

The same media has reported that Russian President Vladimir Putin is not aware of Calvey’s detention and that the arrest was made based on evidence from The Federal Security Service of the Russian Federation (FSB).

In a statement provided to CNBC Friday, the head of Russia’s Sovereign Wealth Fund, Kirill Dmitriev, said he considered Calvey a professional.

“It is very difficult to comment on the situation around Michael Calvey’s detention not knowing the details of the charges. However, here at the Russian Direct Investment Fund we know Michael Calvey and the team of Baring Vostok as highly professional investors, committed to the highest ethical standards accepted in the investment community” he said.

Speaking at the Munich Security Conference, Dmitriev added that he would personally vouch for Calvey.

“I am ready to provide personal guarantee for Michael Calvey and believe that he did a lot for attracting foreign investment in Russia and helped many Russian companies to grow and mature.”

CNBC has learned that Dmitriev and Calvey have previously co-invested on a number of projects.