WASHINGTON -- The U.S. Department of Defense says three members of the U.S. Armed Forces were wounded in a movie theater shooting in Colorado and one is unaccounted for.

The agency says a Navy sailor was injured and a male sailor who was at the theater early Friday morning cannot be located. The sailors are part of a Navy Cyber Command unit at nearby Buckley Air Force base.

Two Air Force airmen based at Buckley were also wounded, but their specific unit hasn't been released.

Both branches of the military are working with the families of the service members to make sure they are cared for.

The Defense Department also says the suspect, James Holmes, is not a past or current member of any branch or component of the Armed Forces.

Statement from US Department of Defense: The Department of Defense is deeply saddened by the news of the tragic incident at the Aurora Mall Movie Theater in Aurora, Colo. Our thoughts and prayers are with the victims and the families of those impacted by this event.

One sailor was injured and one, known to have been at the theatre that evening, is currently unaccounted for. Two airmen were injured in the incident. The Navy and the Air Force are working with the families of these service members to ensure they have the care and attention they need.

We can also confirm that the alleged gunman in this incident, James Holmes, is not a past or current member of any branch or component of the U.S. Armed Forces.

The FBI told CBS News there was no indication that the shooting is tied to any terrorist groups.