As the Norilsk Nickel shareholder dispute between Rusal (controlled by Oleg Deripaska) and Interros (owned by Vladimir Potanin) shows no sign of being resolved, President Medvedev ordered the Prosecutor General to examine the situation, according to RIA Novosti. Russian officials denied rumors that the government is seeking to obtain a stake in the company, which is considered an important strategic asset. Norilsk Nickel is the world's leading nickel producer. Rusal holds a 25% stake in the company and was involved in an earlier high-profile dispute with Interros, the other major shareholder. That dispute was resolved by an agreement reached in 2008, but in recent weeks Rusal has accused Interros of violating that agreement.