A banker was arrested Sunday for allegedly looking up the skirt of a female high school student at a bookstore in Yokkaichi, Mie Prefecture, police said.

Hisashi Zenke, a 47-year-old employee of Mizuho Bank, is suspected of using a hand mirror to look inside the girl's skirt from behind while she was browsing at around 2:20 p.m. Sunday, police said.

A guard at the bookstore noticed the man's suspicious act and reported to police. Zenke was caught red-handed, they said.