LAS VEGAS - NOVEMBER 18: Asher Clark #17 of the Air Force Falcons runs for yardage against the UNLV Rebels during their game at Sam Boyd Stadium November 18 2010 in Las Vegas Nevada. Air Force won 35-20. (Photo by Ethan Miller/Getty Images)
Asher Clark has been removed from the Air Force Academy less than a week before he was scheduled to graduate.
Asher Clark -- Air Force's second all-time leading rusher -- has been removed from the Academy less than a week ahead of graduation, and according to a report from The Gazette in Colorado Springs, the reason is drug-related.
Academy officials will not comment on the reason for Clark's removal.
Air Force has been conducting an investigation into illegal drug use among some of its cadets, several of whom are athletes.
The academy’s investigation into drug use expanded to involve 31 cadets, and the academy announced that some were involved in intercollegiate athletics. The academy announced in mid-January that 15 cadets were suspected of using a banned substance other than alcohol, tobacco or drugs prescribed to cadets.
As a senior in 2011, Clark ran for 1,110 yards and seven touchdowns.
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