Several people were injured after a “possible chemical agent” was released during the Baltimore Pride parade on Saturday evening, according to the Baltimore Police Department.

Around 8:30 p.m., attendees informed officers that a chemical agent, potentially mace or hair spray, was released into the crowd. Police confirmed it was not released by law enforcement. Fireworks also went off, causing a stampede and further injuries. It remains unclear whether the injuries were due to the stampede or the chemical agent.

Baltimore Pride Parade Disrupted by Possible Chemical Agent, Injuries Reported
The incident occurred at around 8:30 PM, when the event was nearing its closing stages and had attendees in close proximity to each other

Fire officials treated individuals on the scene, and the event was shut down. Police have not yet identified the chemical agent and have no information to suggest this was a targeted attack.

This incident follows other disruptions at Pride events this month. In Poulsbo, Washington, 14 Pride banners were slashed on June 5. The Colorado Republican Party called for burning Pride flags, and in Carlisle, Massachusetts, 200 Pride flags were stolen.

In May, the State Department issued a global security alert warning Americans abroad that terrorists could target LGBTQ events during Pride Month, advising U.S. citizens overseas to exercise increased caution.