City police have launched an internal investigation after a video showing an arrest on George Street was posted to social media over the weekend.

In the video, a city police officer approaches the person filming and says he will seize the phone and the person could be arrested for obstructing an investigation.

Under Canadian law, police officers cannot stop people from filming police activities in public places.

"On Saturday, Sept. 21, 2019 police became aware of a video that has now been posted on several social media sites, of an arrest that took place on George Street," a city police press release issued Monday states. "We are currently conducting an internal investigation into this matter."

As of Monday, the video had attracted 17,365 views at streamable.com and was being shared on Facebook, Twitter, Reddit and other social media sites.