LONDON -- Remains found after Yevgeny Prigozhin’s private plane crashed last week were confirmed by genetic testing to be those of the Wagner Group leader, Russian investigators said on Sunday.

Ten people died when the jet fell from the sky near the town of Kuzhenkino, north of Moscow, on August 23.

DNA tests showed that the remains recovered from the site matched all 10 people on the passenger list, Russia's Investigative Committee said Sunday.

The crash may have been caused by an explosion on board the plane, perhaps by a well-placed bomb, U.S. officials told ABC News last week, describing their findings from an initial investigation.

This is a developing story. Please check back for updates.