The Air Force Academy said 27 cadets were injured in a brawl during an unofficial ritual marking the first snowfall of the season.
Six cadets were taken to an off-campus hospital after the Oct. 25 ruckus and have been released, the academy said Wednesday. The others were treated at a cadet clinic.
The injuries included concussions, cuts and a human bite, and some cadets required stitches, Brig. Gen. Dana Born wrote in an internal email that was provided to The Associated Press and other media outlets. Academy officials confirmed the email is authentic.
The ritual is called "First Shirt/First Snow" and involves freshmen trying to throw cadet first sergeants – known as first shirts – into the snow.
"This ritual has devolved to become increasingly violent, with significant numbers of cadets requiring medical care over the past two years," Born wrote in her email.