Justin Bieber arrested -- again -- on assault charge

PERTH COUNTY, Ontario -- Justin Bieber was arrested on assault and dangerous driving charges stemming from an alleged fight after his ATV collided with a mini-van in Canada Friday, a police spokesman told CNN Tuesday.

The alleged incident happened on a road in Perth County, Ontario, the community where Bieber, 20, lived as a child.

"Investigation revealed that after colliding, the driver of the ATV and an occupant of the minivan engaged in a physical altercation," Ontario Provincial Police spokesman Kees Wijnands said.

Bieber's representative declined to comment.

Bieber, who is already facing an assault charge in Toronto, was released on "a promise to appear" and ordered to answer the charges at a hearing in Stratford, Ontario, on September 29, Constable Wijnands said.

The young singer is on probation in Los Angeles for a vandalism conviction that resulted in his admission that he egged a neighbor's home last January.

Bieber made a $50,000 donation to a youth charity as part of a plea deal to settle a Miami drunken driving case last month.