A shooting Tuesday afternoon at a school in Colorado left "multiple" victims injured and at least two suspects were in custody, the sheriff's office said, warning that it was still an "active shooter situation."

At least two suspects have been taken into custody following the incident that took place at the STEM school, Douglas County Undersheriff Holly Nicholson-Kluth said at a news conference.

Authorities responded at 1:53 p.m. local time for a "call of shots fired in school" at "STEM school off Ridgeline Blvd," the sheriff's office tweeted.

Sharing a mix of breaking news, Arizona stories, engaging discussions, and popular culture.