Students gather and reunite with their parents at a fast food joint across from Arapahoe High School, after a student opened fire in the school in Centennial, Colorado December 13, 2013. [Photo/Agencies]

CENTENNIAL - A sheriff says a suspect in a Colorado high school shooting has died of an apparent self-inflicted gunshot wound.

Arapahoe County Sheriff Grayson Robinson said Friday that the shooter was a student at Arapahoe High School in Centennial, a suburb of Denver. He says another student was wounded when he confronted the armed student and was shot.

Officers found another injured student while securing the school.

Police were outside the school, and 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 (13 kilometers) east of Columbine High School in Littleton, where two teenage shooters killed 12 classmates and a teacher before killing themselves in 1999.