Nov. 20 (UPI) -- At least five people died and another 18 were injured in a shooting at a gay nightclub in Colorado Springs, Colo., just before midnight Sunday, police said.

The mass casualy event occurred at Club Q, an LGBTQ+ nightclub.

"They did locate one individual who we believe to be the suspect inside," Colorado Springs Police Lt. Pamela Castro said. "At this point in time, the suspect is being treated, but is in custody."

Police declined to talk about a possible motive.

Castro didn't say whether the suspect was included among those injured, and this was not an officer-involved shooting."