Russia has issued an international arrest warrant for Kremlin critic and former oil tycoon Mikhail Khodorkovsky whom police accuse of ordering the killing of the mayor of a Siberian oil town, a police spokesman said on Wednesday.
Khodorkovsky, who denies the charges, was arrested in 2003 after falling out with Vladimir Putin and later convicted of tax evasion and fraud in a trial he said was politically-motivated.
Released in 2013, he now spends a lot of time in London.
Markin said the motive was financial and linked to Petukhov's demands for Yukos to pay taxes he said it was avoiding.
Russia announced the warrant a day after armed police raided the Moscow offices of a pro-democracy movement founded by Khodorkovsky.