Police have arrested a 61-year-old barber from the city of Mitaka in western Tokyo on suspicion of robbery and sexual assault after a woman alleged he threatened her with a knife in a hotel room and took tens of thousands of yen from her wallet.

The suspect, Masahide Nanba, is said to have approached the victim, a woman in her 20s, near Kabukicho district's Okubo Park in Tokyo’s Shinjuku Ward, and led her to a nearby hotel sometime between 1 a.m. and 3 a.m. on May 27.

Once inside the hotel room, he reportedly brandished a knife at the victim and tied her up, threatening her, saying, "If you don't do as I say, I'll kill you."