Bykov, who headed the Krasnoyarsk smelter, was freed from prison in August pending trial on other charges, including money laundering and complicity in murder. Bykov had denied the earlier charges.
"Following an investigation, Bykov, Anatoly Petrovich was detained Oct. 4," a spokeswoman for the Krasnoyarsk FSB said by telephone.
She said the detention was based on a criminal investigation into the murder of businessman Pavel Struganov, who was shot dead in downtown Moscow in September.
Bykov?€™s lawyer, Robert Dubinnikov, denied the businessman had any involvement in Struganov?€™s murder and described his detention as a "provocation," RIA news agency reported.
Police conducted a search of a country house owned by Bykov in the Krasnoyarsk region in connection with the investigation, the spokeswoman said. FSB investigators were questioning him.
Bykov has been an important figure in politics and business in Siberia. He was a key opponent of Krasnoyarsk?€™s governor, tough-talking former paratroop general and presidential candidate Alexander Lebed.
He has said he is innocent of the crimes and that the charges against him are political. He was extradited to Russia from Hungary in April after being denied a request for asylum there.
The Krasnoyarsk plant Bykov once headed is now controlled by Russian Aluminum, a company set up this year by shareholders of the Sibneft oil company and the Siberian Aluminum group.
A Message from The Moscow Times:
Dear readers,
We are facing unprecedented challenges. Russia's Prosecutor General's Office has designated The Moscow Times as an "undesirable" organization, criminalizing our work and putting our staff at risk of prosecution. This follows our earlier unjust labeling as a "foreign agent."
These actions are direct attempts to silence independent journalism in Russia. The authorities claim our work "discredits the decisions of the Russian leadership." We see things differently: we strive to provide accurate, unbiased reporting on Russia.
We, the journalists of The Moscow Times, refuse to be silenced. But to continue our work, we need your help.
Your support, no matter how small, makes a world of difference. If you can, please support us monthly starting from just $2. It's quick to set up, and every contribution makes a significant impact.
By supporting The Moscow Times, you're defending open, independent journalism in the face of repression. Thank you for standing with us.
Remind me later.