About 150 protesters stalled the Pride Parade on Sunday in downtown Minneapolis for about 20 minutes.

The protesters wanted to raise the issue of police treatment of minorities. They were also opposed to the decision to extend an invitation last-minute for police officers to take part in the parade.

The Star Tribune reported Sunday the parade was held just after a controversy had erupted over whether uniformed police officers could take part in the event.

The protesters who halted the parade shortly after it began were carrying signs with phrases including: “Black Lives Matter,” “No KKKops at Pride! Make Pride Revolutionary Again!” and “Justice for Philando.”

Some of the protesters were chanting: “No justice, no peace, no pride in police.”