Anatoly Chubais, a Russian government insider for decades, is leaving his job as President Vladimir Putin’s special representative on the environment, Russian state news agency TASS reported Wednesday, citing an unnamed source.

Chubais is the highest-profile Russian official to quit since the war began.

Reuters reported that Chubais had left Russia and did not plan to return, also citing an unnamed source.

CNN is seeking comment from Chubais himself and has not independently confirmed that he has left Russia or the reason for his resignation.

Chubais had been in the environment job since December 2020, TASS said. He rose to prominence as Boris Yeltsin’s finance minister in the 1990s.

CNN