Ex-head of the International Association of Athletics Federations (IAAF) Lamine Diack, hailing from Senegal, is suspected of deliberately covering up cases of positive doping tests by Russia's athletes, Reuters reports, Censor.NET informs citing UNIAN.
Diack has been placed under formal inquiry together with his judicial adviser.
According to investigators, Diack received payments from Russia in return for not revealing the doping results of Russian athletes.
Diack, a former long jumper, headed the athletics body for the best part of a decade from 1999. In August, he was replaced by Britain's Sebastian Coe, who won the election from Ukrainian Serhii Bubka.
A major doping scandal involving Russia's track and field athletics national team occurred in August 2015, on the eve of the World Championship. It was reported that in recent years, Russia has won 80 percent of medals at the Olympic Games and world championships with the help of doping. During 2015 World Championship, Russia participated without a number of its leading athletes, accused of taking doping, and took the ninth place in the overall standings, having won only four awards - two gold, one silver, and one bronze medals. For comparison, during 2013 World Championship, Russia took the first place in the overall standings (17 medals, 7-4-6). During track and field athletics tournament at the London 2012 Olympic Games, it won the second place (17, 8-4-5).