According to local police, the 'Baby' singer was taken into custody following allegations he collided with another vehicle while out on his ATV.
A quoted police report claims his ATV and a minivan became involved in a collision and a "physical altercation" followed.
He was released shortly after.
A lawyer for Justin, 20, has released a statement to ABC News saying the incident happened when photographers discovered where Justin and on-off girlfriend Selena Gomez, 21, had been staying in Justin's hometown of Stratford, Ontario.
"Justin Bieber and Selena Gomez' peaceful retreat in Stratford this weekend was unfortunately disrupted by the unwelcome presence of the paparazzi. This has regrettably resulted in charges of dangerous driving and assault.
"Mr. Bieber and Ms. Gomez have fully cooperated in the police investigation. We are hopeful that this matter will be quickly resolved."
A court date for Justin has been set for 29 September.
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