At least two people have been injured in a shooting Friday at Arapahoe High School in Centennial, Colorado.

The shooter is still believed to be inside of the school.

From CNN:

Emergency personnel are advising parents to go to King Soopers, a grocery store in the vicinity of the school, to pick up their children, CNN affiliate KDVR reported. The high school, with a student population of 2,229 students, has 70 classrooms. The school, which was built in 1964, is part of the Littleton Public Schools system. All schools in the system have been put on lock down, authorities said.

Read more at CNN

We will keep you updated on the developments of this story.

 UPDATE: Suspect is dead from what appears to be a self-inflicted gunshot wound