The Ibaraki Prefectural Police Headquarters is seen in this file photo in Mito, Ibaraki Prefecture, on Feb. 26, 2019. (Mainichi)

MITO -- A company employee in Ibaraki Prefecture, northeast of Tokyo, was arrested on March 7 on suspicion of causing injury to a colleague by blasting an air compressor into his butt.

The suspect, 41-year-old Naoki Takahashi, a resident of the prefectural city of Kashima, has admitted to the actions, according to the Ibaraki Prefectural Police's Kamisu Police Station.

Police allege the incident took place at around 2 p.m. on March 6 at the men's workplace in the city of Kamisu. Takahashi's colleague, a dispatch worker aged 32, sustained injuries after an industrial-use air compressor was pressed against his trousers near his backside, and then fired.

According to the police station, the man then fell to the floor, and Takahashi called the 119-emergency number. The man was then dispatched to hospital by ambulance, and appears to have suffered serious injuries. Other colleagues were reported to have been in the vicinity at the time, and police are continuing to investigate the events in detail.

(Japanese original by Shimpei Torii, Mito Bureau)