(LONDON and AMSTERDAM) — 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 remains “conform to the manifest,” committee spokeswoman Svetlana Petrenko said.

“Molecular and genetic tests have been completed as part of the investigation of the plane crash in the Tver region. According to their finding, all ten victims have been identified. They fully match the list on the flight manifest,” the committee said in a statement to Interfax, the Russian newswire.

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.

The death of Prigozhin, a businessman who rose to become a powerful international paramilitary leader after entering Putin’s good graces, came exactly two months after he led a daylong mutiny against Moscow.

Wagner Group forces, which been fighting in Ukraine, turned from their headquarters in Rostov-on-Don, a key Russian city near the southern border, and marched toward the capital in the evening on June 23. Within a day, they had turned back.

What followed were weeks of speculation about Prigozhin’s whereabouts.

He was first said to be taking refuge in neighboring Belarus under an agreement with Putin that had been brokered by that country’s leader, Alexander Lukashenko. He was then said to have had a meeting with Putin at the Kremlin. A video posted before his death appeared to show him in Africa.

“I knew Prigozhin for a very long time, since the early 1990s. He was a man with a complex destiny, and he made serious mistakes in life,” Putin said in a televised address on Thursday. “He achieved the results he needed both for himself and, when I asked him, for the common cause, as in these last months.”

ABC News’ Anastasia Bagaeva contributed to this report.

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