French prosecutors are investigating a suspected act of cannibalism carried out on a prisoner by a cellmate in the northern city of Rouen.
Cannibalism was "very likely", a prosecutor said after an autopsy showed that some organ parts were missing. The suspected killer claimed he had eaten the victim's heart. But the autopsy showed the heart has remained intact.
The prosecutor, quoted by the AFP news agency, said some muscle had been removed from the victim's rib cage and part of one lung was missing.
The suspected killer and another prisoner were sharing the cell with the victim when the attack happened on Wednesday, French TF1 television reported.
The suspected killer, aged 35, is believed to have beaten up the victim, 31, and then suffocated him with a plastic bag.