The announcement follows a statement from owner Yevgeny Prigozhin accusing Russian Defense Minister Sergei Shoigu of ordering a rocket strike on Wagner’s field camps in the Ukraine where its soldier are fighting on behalf of Russia against Ukranian forces.
Russian state associated media has confirmed it.
That doesn’t mean a lot.
They don’t have much of a working relationship with the truth.
I think it’s safe to say that if the Russian state media says the FSB want to arrest him, then the FSB probably do want to arrest him.