Winnipeg police have arrested a man who was taking part in the Take Back Canada rally in the city's downtown on Monday.
Police confirmed to CBC News that one person was taken into custody during the rally and march, which began late Monday afternoon at the Manitoba legislature.
At one point, the man was taken to the Health Sciences Centre for a medical issue, said police, although they would not elaborate on what that issue was.
Video footage captured by other protesters show police officers and an ambulance at the scene.
Police say the man has since been transported from hospital to a police station, where he is expected to face charges.
Police would not say on Monday what those charges are.
Almost 100 people attended the rally, which protested the federal Conservative government and recent measures such as the omnibus crime bill.
The rally also took place on the one-year anniversary of the Occupy movement that produced protests around the world last year.
A total of 17 Take Back Canada protests took place across the country on Monday.