The Latest from the IAAF investigation (all times local):

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11:10 a.m.

In the wake of the doping scandal, the governing body of track and field says Russian bank VTB has decided not to renew its partnership deal.

The IAAF says "VTB has expressed no interest to extend its present contract, the last event of which was the IAAF World Championships in Beijing. The contract will come to a natural end in 2015."

VTB became the first Russian company to sign a sponsorship contract with the IAAF in 2006.