Authorities took a teenage Japanese girl into custody Sunday for allegedly murdering and mutilating her classmate, Kyodo news agency reported.

According to the report, the girl who was not named because she is a minor, killed her 15-year-old Aiwa Matsuo by hitting her with a metal object in the head and strangling her in Sasebo City, Nagasaki.

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The teen-aged suspect who had been living apart from her parents admitted to the crime stating that she acted on her own. After Matsuo died, the suspect purportedly dismembered her head and left hand.

Her remains were found on a bed at the suspect's apartment where the supposed murder weapon was also discovered.

Alarmed that she did not return that night, the victim's parents reported her missing on Saturday afternoon after she went to see her friends.

Authorities believe that both girls went to the same junior high school in southwest Japan.

Though not very common, similar cases had been reported in Japan with the same level of violence involved.

In 1997, another teen-ager was arrested for killing and beheading two children and left one of the heads in front of the school gate.

Ten years ago, a primary school girl in the same city was reported to have stabbed her 12-year-old classmate to death because of the victim's comments about her appearance which were made known via online chat rooms.

Four years after, a man killed seven people and injured a number of people in a populated Tokyo street when he went on a stabbing spree.

Tagskilling, schoolgirl