Kuala Lumpur: The World Anti-Doping Agency (WADA) said yesterday it was "very alarmed" by accusations of mass doping that have plunged athletics into a deep crisis. WADA president Craig Reedie said the new claims would "shake the foundation" of athletes trying to stay clean.


It's all hazy: Athletes compete in the men's 100m semi-final of the IAAF World Youth Championships in Cali, Colombia recently. Pic/AFP 

German TV channel ARD and Britain's Sunday Times newspaper said they had been leaked a database belonging to athletics governing body the International Association of Athletics Federations (IAAF) with details of 12,000 blood tests from 5,000 competitors which revealed "extraordinary" levels of doping.