Three homeless men in the Russian city of Perm killed a man, ate part of the body and sold other portions to be used as meat in a kebab stand, investigators said on Friday.

The three men, acting out of "personal hostility toward the victim," stabbed and beat the 25-year-old with a knife and a hammer until he died at the scene, the Perm branch of Russia's investigative committee said.

- After the crime was carried out, the corpse was dismembered and partly used for food, and also sold to a kiosk that sold kebab and meat pies - it said in a statement.

The homeless men have been charged with murder over the crime, which took place in a forested area of Perm, a city near the Ural Mountains located some 1,400 kilometers (870 miles) east of Moscow, the statement said.