The ethics board of the International Association of Athletics Federations (IAAF) has provisionally banned deputy director general Nick Davies, his wife and a senior member of its medical team for allegedly taking money to bury news of Russian doping positives in 2013.

Davies, IAAF president Sebastian Coe's closest aide, project manager Jane Boulter-Davies and medical manager Pierre-Yves Garnier are provisionally suspended from holding any office at the IAAF for 180 days from June 10.

The allegations stem from an email sent by Davies to the son of former IAAF president Lamine Diack before the 2013 World Athletics Championships in Moscow which outlined a plan to delay naming Russian drugs cheats to avoid bad publicity.