The 19-year-old pop star, who was arrested on drunk driving and drag racing charges in Miami last week, turned himself in to a Toronto police station Wednesday, the CBC reported.
Bieber is reportedly there to be booked on charges regarding the alleged assault of a Toronto limousine driver last month.
Toronto police have yet to confirm Bieber's involvement.
Duty Desk, 52 Division and Toronto Police Corp Comm cannot confirm any media reports about Justin Bieber, so please don't bother calling ^sm— Toronto Police (@TorontoPolice) January 30, 2014
Bieber attended a Toronto Maple Leafs game on December 29, the night police were called to investigate a possible attack in a limo.
Back in Miami, Bieber's attorney pleaded not guilty to drunk driving charges on the singer's behalf.
His arraignment is scheduled for Feb. 14, though Bieber won't have to appear in court in person.