A 27-year-old man was arrested over the stabbing of Japanese pop star in Koganei City, western Tokyo.
Pop idol Mayu Tomita is in critical condition after the Saturday incident. The suspect is identified as Tomohiro Iwazaki.
Reports said that the songstress had earlier filed a complaint with Tokyo Metropolitan Police saying that a man named Iwazaki had been "persistently" sending her messages over social media.
