CENTENNIAL - There were two people injured during an incident at Arapahoe High School in the 2200 block of East Dry Creek Road in Centennial.
Police are calling it an "active shooter situation."
No one is in custody at this time.
The identity of the victims is not being released at this time.
Arapahoe High School is a part of Littleton Public Schools. There are 70 different classrooms in the high school which covers a 254,000-square-foot area. There are 2,229 students that attend the high school. The school was built in 1964.
9NEWS is rushing a crew to the scene and will post more details as soon as they become available.
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