Moscow - Right-wing extremists have claimed responsibility for decapitating a 20-year-old foreign worker from the former Soviet republic of Tajikistan, Interfax news agency reported Thursday, citing investigators and human rights organizations.

The Tajik man's head was discovered in a plastic bag in a rubbish bin in Moscow. His body had been found on December 6.

A group calling itself the "Combat Organization of Russian Nationalists" claimed responsibility for the attack in a image sent by mobile phone.

Human rights organizations have been complaining about increasing extremist violence in Russia for some time. (dpa)