A prominent Russian millionaire with high-level ties to the Kremlin has been found dead inside a Washington hotel, a Russian official and a senior US official told ABC News.

Mikhail Lesin, the former head of media affairs for the Russian government who's been accused of curtailing the country’s press freedoms, had been staying at Hotel Dupont when he was found Thursday, according to officials, ABC News reported on Saturday.

It's unclear why the long-time adviser to Russian President Vladimir Putin was in Washington, but the Metropolitan Police Department is now investigating his death. On Thursday, US authorities notified the Russian embassy in Washington that one of its citizens had died, and Russian officials are now working with American authorities to determine the circumstances of the death, the embassy told ABC News in a statement.

From 1999 to 2004, Lesin served as Russia’s Minister of Press, Television and Radio, often traveling with Putin on official trips. In 2013, he became head of Gazprom-Media Holding, the state-controlled media giant that describes itself as one of the largest media groups in Russia and Europe. Lesin resigned the next year, reportedly citing family reasons.

Source: MENA