DENVER (AP) — The Army says a Black Hawk helicopter was practicing evading enemy fire when it crashed northwest of Colorado Springs in 2015, injuring all four crew members and destroying the aircraft.

The Army released a report on the crash this week after an open records request by The Associated Press. The report looked at safety and accident prevention issues.

READ MORE: Cars Spun Out & Abandoned As Winter Storm Grips Denver Metro Area

The Army didn’t release the cause of the crash, saying that’s exempt from disclosure.

The Fort Carson-based UH-60L helicopter crashed on a training flight in September 2015. Officials said the $7 million helicopter was a total loss.

READ MORE: Businesses Near Convention Center Eager For Events: 'It's Our Livelihood'
(credit: CBS)

(credit: CBS)

The Army initially said two crew members were hurt, but the report says all four were. Two were hospitalized overnight and the others stayed longer.

Their names and details of the injuries weren’t released.

MORE NEWS: Union Organizing JBS Mass Vaccination Event: 'It's About Time They Are Prioritized'

(© Copyright 2017 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)