Anti-police brutality protesters have had their voices heard by city hall-- but it may not be the message they intended nor yield the outcome they were hoping for.

Mayor Gerald Tremblay said the executive committee and the police are discussing new directives to deal with protests.

He said he wants all demonstrations to let police know ahead of time which route they are planning to take.

He also said city hall is considering resurrecting a proposed bill that would ban face coverings at protests.

"This group does not want to say exactly what they're going to be doing, where they're going to go and I think that complicates things," said Tremblay. "We can't let citizens run throughout the city and then do vandalism [towards] innocent people."

The protest

Sunday's protest started at the Mount Royal Metro station around 2 p.m. and then headed west towards St. Denis. The protest wound its way down St. Denis , and down to Ste-Catherine street.

Hundreds of people turned out.

During the march, there was violence: Rocks, bricks and vegetables were thrown at police; some small fires were set; some mailboxes were tipped over and some windows were broken at hotels.

The group who organized the event, the Collective Opposed to Police Brutality, did not disclose the planned route.

There were 221 arrests made.