In this still image taken from video provided by Fox 31 Denver, police respond to reports of a shooting at Arapahoe High School in Centennial, Colo. Friday, Dec. 13, 2013. Colorado division of emergency management spokeswoman Micki Trost said her director went to the school and their weren't any more immediate details. (AP Photo/KDVR) MANDATORY CREDIT
CENTENNIAL, Colo. (AP) -- Authorities say a suburban Denver student shot at least one other student at a high school Friday before he apparently turned the gun on himself.
Arapahoe County Sheriff Grayson Robinson said the student was wounded when he confronted the gunman at Arapahoe High School in Centennial.
He said officers found another injured student while securing the school.
Littleton Adventist Hospital spokesman Jason Dunkel said a student was taken to a hospital in critical condition.
Students were seen walking toward the school's running track with their hands in the air. Television footage showed students being patted down.
The school is about 8 miles east of Columbine High School in Littleton, where two teenage shooters killed 12 classmates and a teacher before killing themselves in 1999.