Japanese high school girl 'dismembers classmate'

A high school girl has been arrested on suspicion of killing and dismembering a classmate, Japanese police say.

The 15-year-old was arrested on Sunday in Sasebo city in Japan's southern Nagasaki prefecture.

Police said the girl beat her friend and then strangled her on Saturday. She then severed the victim's head and cut off one of her hands, they said.

The victim has been identified as a 15-year-old girl who attended the same high school as the suspect.

Her body was found in the apartment of the suspect, who was living apart from her parents, according to Japanese media reports.

Police said the suspect used a metal instrument to beat her friend.

They quoted the suspect as saying she acted alone, saying: "I did it all by myself", Kyodo news agency reported.

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