A 39-year-old woman has been arrested on suspicion of assaulting a judge in a toilet at the Tokyo District Court on Tuesday.

According to police, the incident occurred at around 10:30 a.m. in a toilet on the 13th floor of the court building in Chiyoda Ward. Fuji TV reported that the judge, a man in his 30s, had gone into the toilet to wash his hands when he was struck on the head from behind by a cane.

The woman, who was wearing a man's business suit and a wig, was seen running out of the toilet immediately after the attack. She ran into the women’s toilet on the 11th floor where she was detained by police. The woman, identified as Chie Kamata, had the 76-cm-long cane with her when she was arrested.

The judge suffered minor injuries.

Police said Kamata has admitted to the charge and quoted her as saying she was dissatisfied with the judge's ruling in a case.

© Japan Today