The world governing body for athletics (IAAF) released a formal statement on Tuesday, strongly denying media reports of widespread doping in the sport.
The IAAF described the reports from Britain's Sunday Times newspaper and Germany's ARD/WDR broadcaster as "sensationalist and confusing", saying there is no evidence any athlete has failed a drugs test.
The IAAF also condemned the publication of private and confidential data that was obtained without their consent but conceded the sport still has some work to do in some countries.
Photograph: Reuters
