Dick Pound, chairman of the World Anti-Doping Agency commission investigation into doping among Russian athletes, says the findings are "worse than we thought" and calls for Russia to be banned from competition.
Wada's independent commission examined allegations of doping, cover-ups, and extortion in Russian athletics, which also implicated the IAAF, the sport's world governing body. It also wants five athletes and five coaches to get lifetime doping bans.
The report, instigated after allegations made on German television in December 2014, also identified "systemic failures" in the IAAF that prevent an "effective" anti-doping programme.
Richard Conway reports.