Updated

The Associated Press has learned that the world's anti-doping authority is launching an "extraordinary" audit of Jamaica's drug-testing agency following allegations that its policing of the island's sprinting superstars led by Usain Bolt all but collapsed in the months before the London Games,

WADA's probe follows data the former executive director of the Jamaica Anti-Doping Commission revealed to the Caribbean's oldest newspaper indicating a near complete breakdown in JADCO's out-of-competition testing from January 2012 to the July opening of the Olympics.

In an interview with The Associated Press, JADCO chairman Herbert Elliott dismissed Renee Anne Shirley's figures as lies. But the World Anti-Doping Agency confirmed to the AP that there was "a significant gap of no testing" — and that it is concerned enough to investigate.