Tokyo: Japanese media are reporting an explosion in a public restroom at Tokyo's controversial Yasukuni shrine, which enshrines Japan's war dead, including those executed as war criminals. No one was injured.

The blast today caused a minor fire in the restroom, according to TBS TV news. Police reportedly suspect foul play, although other details were not immediately available.

Tokyo metropolitan police declined comment as the case is still under investigation. The person in charge of media at Yasukuni was out and not immediately available for comment.

Yasukuni has been the target of criticism from Japan's neighbors, including China and South Korea, which suffered World War II atrocities and aggression. But the shrine has also divided Japanese.