Hundreds of protesters assembled in downtown Montreal Saturday afternoon demanding a public inquiry into corruption in Quebec's construction industry.

Some who showed up for the protest at McGill College Avenue and Sherbrooke Street asked for Quebec Premier Jean Charest’s resignation.

The event comes a week after a leaked report from the province’s anti-corruption unit on the province’s roadwork industry was made public.

The report described the industry as rife with backroom deals and ties to organized crime.

Demonstration organizer Patrick Poirier addresses the crowd at Saturday's protest in Montreal. (Raffy Boudjikanian/CBC) Last week, Charest rebuffed calls for an inquiry , saying he's confident in the police investigators and other measures introduced to clean up the sector.

The protest movement gained traction on social networks before materializing Saturday afternoon. The crowd included members of Québec Solidaire and the CSN federation of labour unions.

Parti Québécois MNA Bernard Drainville was also present.

A similar demonstration was planned for Quebec City later in the afternoon.