BERLIN -- A man has confessed to killing and eating another man who volunteered to be killed in one of Germany's strangest cases in years, prosecutors said yesterday.

The 41-year-old suspect recorded the crime on a video camera after finding the apparently willing victim through an advertisement posted on the Internet, the state prosecutor's office in the central German city of Kassel said in a statement.

"The accused supposedly first cut off the penis of the victim by mutual agreement because they wanted to eat it together," the statement said.

The accused then killed the 37-year-old male victim with deep cuts to the neck and chopped the body into pieces that he froze and later ate, the statement said.

"While he froze portions of the flesh, he supposedly buried the rest of the corpse. He ate most of the flesh later."

Prosecutors said they were treating the case as murder. Yesterday, the suspect was taken before a judge, who ordered him remanded in custody after the man made a full confession, the statement said.

"The deed appears to stem from cannibalistic and homosexual tendencies shared by both men," the prosecutors said.

Police believe the slaying occurred in the spring of 2000. They arrested the man after coming across an ad he had posted on the Internet seeking another volunteer who wanted to be killed and eaten by him.