A Japanese inmate at the Fuchu prison committed suicide by stabbing himself with a chopstick, the Mainichi Daily News reported Monday.

The inmate, who was not identified, stabbed himself in the back of the head with the sharp end of a broken chopstick on Feb. 19. He was treated at a Tokyo hospital for his injuries, but died Sunday in the Fuchu Prison infirmary, the Mainichi Daily News reported.

The man had begun his sentence in March 2006.

Click here for more from the Mainichi Daily News.