A 25-year old man was killed, dismembered, eaten and body parts sold to a fast-food stall here in the Ural region of Russia, officials said on Friday.
Investigators said three homeless men killed the victim out of "personal enmity".
"They stabbed him several times with a knife, as well as hit him with a hammer. The victim died at the scene of the crime," the prosecutor's office said on its website.
All the accused have been arrested. If convicted, they face up to 15 years in prison.