Text message exchange between Lord Coe and Papa Diack
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Athletics Doping: What did Seb Coe know?

In his first year as president of world athletics, Lord Coe has had to deal with the fallout from the biggest corruption scandal the sport has ever seen. Panorama investigates what Lord Coe knew about the scandal and when, and also uncovers links between the IAAF president and the man at the centre of the corruption.

You can watch Panorama: Seb Coe and the Corruption Scandal on BBC One on Thursday, 16 June at 19:00 BST.

The programme will also be available on the BBC iPlayer.