Hamilton police are investigating a physical confrontation between two opposing groups at the Hamilton Pride festival at Gage Park on Saturday.
Jackie Penman, a Hamilton police spokesperson, said she "can't say for sure" what sparked the altercation, but that a group of protesters clashed with a group attending the festival.
"I do believe there was a religious group there, and they were joined by some yellow vest protesters as well, and then some of the participants at the Hamilton Pride festival also got involved," she said.
The incident happened in the middle of the park, away from the main festivities. Those involved in the scuffle had to be separated by police and escorted off the property.
Pictures circulating on social media seem to show protesters holding signs condemning the event, despite barricades that were set up to bar them from the festival, although CBC News could not independently verify the content.