Tokyo police say two men were injured after third man went on a stabbing spree at a Tokyo subway station.

The attacks happened shortly before 7pm at a station on the Namboku Line in central Tokyo.

Police say the two victims were boarding the train when they were attacked.

They say the 43-year-old assailant is in custody but is reportedly refusing to answer questions.

The police are investigating the attack.

AloJapan.com