Justin Bieber Arrested for ATV Accident with Photogs (UPDATE)

9/2/2014 8:20 AM PDT
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0902-justin-beiber-getty-01Justin Bieber got arrested in Canada after crashing his ATV into a minivan driven by paparazzi ... TMZ has learned -- and he now faces charges of dangerous driving and assault.

Bieber was taken into custody Friday afternoon in Perth County, Ontario. Police say there was a physical altercation between Justin and a paparazzo in the minivan ... after they had the collision.

Justin was photographed riding the ATV with Selena Gomez Friday in Ontario near his father's home.

0902-justin-bieber-atv_launchPolice say Justin was released and will have to appear in court later this month.

He could have a bigger problem on his hands though -- Justin is on probation for 2 years after the egging case in L.A. So, it's possible this arrest could trigger a violation.

Justin's attorney says Justin and Selena are fully cooperating with the police investigation.
12:00 PM PT -- The Canadian photogs have now lawyered up with attorney Gloria Allred.  Gloria says she has already made contact with the LAPD.