The Associated Press reports today that prosecutors have closed the investigation into possible doping by seven-time Tour de France winner Lance Armstrong.
United States Attorney Andre Birotte Jr. announced in a press release that his office "is closing an investigation into allegations of federal criminal conduct by members and associates of a professional bicycle racing team owned in part by Lance Armstrong." He didn't disclose the reason for the decision.
The Grand Jury convened in Los Angeles and sought to uncover whether Armstrong had created a doping program at his U.S. Postal team. Jeff Novitzky who investigated the baseball stars Roger Clemens and Barry Bonds led the Armstrong investigation.
During the course of the Grand Jury investigation, the Grand Jury subpoened ex-teammates, team officials, and friends of Armstrong. One of the stronger accusations came in May 2011, when Tyler Hamilton appeared on 60 Minutes and said he saw Armstrong use doping products during the Tour de France.
Armstrong has not yet commented on the closure of the investigation.