A shooting at a high school in the Denver suburbs has left three teenagers hospitalized in critical condition, including the suspected shooter, authorities said.

The shooting took place at around 12:30 p.m. on Wednesday at Evergreen High School in Evergreen, Colorado. All victims taken to the hospital are believed to be students, the Associated Press reported, citing Jefferson County Sheriff’s Office spokesperson Jacki Kelley.

“I am closely monitoring the situation at Evergreen High School, and am getting live updates,” Colorado Governor Jared Polis posted to X Wednesday afternoon. “State Troopers are supporting local law enforcement in responding to this situation. Students should be able to attend school safely and without fear across our state and nation. We are all praying for the victims and the entire community.”

Law enforcement officers and emergency personnel respond to a shooting at Evergreen High School in Evergreen, Colorado on Wednesday, Sept. 10, 2025.  (Hyoung Chang/MediaNews Group/The Denver Post via Getty Images)

More than 100 police officers from the Denver area responded to the incident at the high school, which has over 900 students. The Jefferson County Sheriff’s Office was also the primary agency that responded to the 1999 Columbine High School shooting, which left 14 dead, AP reported.

The Jefferson County Sheriff’s Office did not immediately respond to Fox News Digital’s request for comment.