IAAF under fire as further Russian doping allegations surface

A sportsman casts a shadow on a race track while training at a local stadium in the southern city of Stavropol, Russia, November 10, 2015. REUTERS/Eduard Korniyenko

LONDON (Reuters) - Athletics' governing body came under renewed fire on Tuesday following disclosures that top officials were aware of a potentially serious doping problem among Russian athletes as far back as 2009.

The Associated Press published a copy of a letter from Pierre Weiss, then the general secretary of the International Association of Athletics Federations (IAAF), to Valentin Balakhnichev, the former Russian athletics president who was banned from the sport for life last week.