Tags: Olympic

Organizers of the London Marathon criticized athletics' governing body, the International Association of Athletics Federations (IAAF), on Sunday for its "failure to take effective action" in the war on doping.

The two scientists whose analysis of leaked anti-doping data from the IAAF's database has thrown athletics into crisis defended their findings on Wednesday after their claims were rubbished by the world governing body.

Athletics looks set to be plunged into a new doping crisis after IAAF test data leaked to two news organizations showed hundreds of suspect samples from athletes, including Olympic and world championship medalists, the BBC reported on Sunday.