Athletics' world governing body has brought charges against four men, including the son of a former president, as well as a former head of its anti-doping department as part of an investigation into corruption.
Papa Massata Diack is the son of ex-IAAF chief Lamine Diack, and worked as a marketing consultant for the organisation, while Gabriel Dollé used to be the director of anti-doping.
Diack senior is being investigated over an alleged seven-figure payment to cover up doping offences by Russian athletes.
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