Two protesters got up on stage during the celebrity pit-stop challenge — topless.
They yelled slogans, denouncing sex tourism during Formula One weekend.
One had the word "slavery" written across her chest.
Members of the group have staged similar protests at several events in recent years.
The protest was short-lived. The two were quickly escorted away by security.
Montreal police say the two women could be charged with a misdemeanour.Suggest a correction