Athletics denies mass doping cover up December 10, 2014 -- Updated 1949 GMT (0349 HKT)

(CNN) -- Days after the world of athletics was hit by serious doping allegations, the sport has been accused of covering up how it dealt with scores of suspicious blood samples.

In the two years between 2006 and 2008, the body in charge of global athletics failed to examine as many as 150 samples from several countries, according to a report broadcast by a German network Monday.

more