The governor of Russia's Udmurtia region has been detained on suspicion of taking some $2.5 million in bribes.
The Investigative Committee said on April 4 that Aleksandr Solovyov was detained and escorted from Udmurtia's capital, Izhevsk, to Moscow for questioning.
The Kremlin said that President Vladimir Putin had fired Solovyov due to "loss of trust." It was later announced that Putin had named Civic Chamber head Aleksandr Bechalov as the republic's acting head.
The Investigative Committee said that Solovyov was suspected of accepting bribes from construction companies working on infrastructure development in the region in 2014-16.
He has been indicted on two charges of taking a large-scale bribe.
He has been governor of Udmurtia since September 2015.
Some 53 percent of the 1.5 million residents of Udmurtia, a republic in Russia's Volga Federal District, are ethnic Udmurts.
The Udmurt language is of the Uralic stem that also includes Finno-Ugric languages.