A large group of people gathered in downtown Montreal on Saturday to protest against Quebec’s vaccination passport, just a few weeks before the system is expected to be in place.

The crowd, which stretched at least four to five blocks on René-Lévesque Boulevard West, began marching toward  Place des Festivals at 2 p.m. ET, with people chanting “No to vaccine passports,” in French.

Quebec Health Minister Christian Dubé confirmed earlier this week that a vaccination passport system will be implemented as of Sept. 1 in an effort to combat a growing COVID-19 caseload and what he described as an “inevitable” fourth wave.

Details about the vaccination passport are still being worked out, but it is expected to only allow those who are fully vaccinated access to festivals, bars, restaurants and physical training facilities.