A videograb of the plane crash site in Russia's Tver region north of Moscow.

Wagner chief Yevgeny Prigozhin amid victims of plane crash, said Russian agencies.

"The plane that crashed in the Tver Region listed Yevgeny Prigozhin among its passengers, (Russia's aviation agency) Rosaviatsia said," TASS news agency reported, with RIA Novosti and Interfax issuing similar reports.

Unconfirmed media reports said the jet belonged to Prigozhin, founder of the Wagner private military company.

The Embraer aircraft, en route from Moscow to St Petersburg, was carrying seven passengers and three crew, TASS reported.

The authorities said they were investigating the crash, which occurred in the Tver region more than 100 kilometres north of Moscow.

Prigozhin, whose private military force Wagner fought alongside Russia's regular army in Ukraine, mounted a short-lived armed mutiny against Russia's military leadership in late June.

The Kremlin said he would be exiled to Belarus, and his fighters would either retire, follow him there, or join the Russian military.

Agencies