Local police quickly arrested the male perpetrator on the spot on suspicion of attempted murder, who later confessed to the stabbing.

According to the police, the stabbing was reported by a staff member at Rinku-Town Station at around 10:25 a.m. local time. It is believed that the attack happened while the train was in motion.

The injured were a male passenger in his 20s, another in his 70s, and a male train conductor in his 20s.

All three were taken to the hospital, their injuries not life-threatening, according to authorities.

Kazuya Shimizu, the 37-year-old perpetrator, was found carrying three knives when taken into custody on the station platform.

The station where the incident took place is situated near a large shopping mall and a hospital in Izumisano, Osaka prefecture.