Austrian police say they have arrested a suspected gang leader who Russian authorities suspect was involved in the killing of at least six people.

Police said Monday the 44-year old was arrested in Vienna on the weekend and is awaiting extradition to Russia. Russia's RIA Novosti news agency identified him as Aslan Gagiyev, who fled Russia last year and was sought on an Interpol warrant.

Austrian police did not name the suspect.

Russian authorities suspect that a gang organized by Gagiyev was responsible for numerous killings in Moscow and North Ossetia.

Among the victims allegedly killed by the gang was Kazbek Pagiyev, a former mayor of Vladikavkaz, the provincial capital of Russia's republic of North Ossetia. He was shot dead in 2008.