(AP) - Sixteen black West Point cadets who posed with raised fists for a pre-graduation picture won't be punished for the gesture.

The U.S. Military Academy said Tuesday it concluded the group photo didn't violate any Department of Defense rules limiting political activity. West Point says in a statement an internal inquiry found the picture of the 16 female cadets captured a spur-of-the-moment gesture intended to demonstrate unity and pride.

The decision comes with the seniors poised to graduate May 21.

Some observers outside the academy had suggested the cadets violated the military policy by posing with clenched fists held head high.

A raised fist has symbolized political resistance for generations. It was used by black power advocates in the 1960s.

A mentor to the women has said they were simply celebrating their forthcoming graduation.