A knife-wielding attacker killed a 12-year-old schoolgirl and another man before stabbing himself to death in a rampage outside Tokyo Tuesday that also injured more than a dozen including several children.

The mass stabbing in the town of Kawasaki, south of the Japanese capital, was a rare attack in a country with one of the lowest rates of violent crime in the developed world, and there was no immediate detail on the suspect’s motive.

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Kiyoshi Matsuda, deputy director of the Nippon Medical School Musashi Kosugi Hospital, told reporters that the 12-year-old schoolgirl and a 39 -year-old man had succumbed to their injuries.

Local media reported that the suspected attacker, a man in his 50s, had also died of his wounds after turning the knife on himself. Emergency services said at least 16 others had been injured in the attack.