A group that oversees the anti-doping program for international sports has made claims that Kenyan athletes are receiving help from local medical professionals to conceal drug violations.

Two athletes used similar explanations to explain medical anomalies, leading the Athletics Integrity Unit (AIU) to the same conclusion.

The runners, Eglay Nafuna Nalyanya and Betty Lempus, had allegedly produced forged paperwork to support their claim to have had an intramuscular injection at the same hospital.

Athletics Kenya said last week that it had been promised $5m (£4m) a year to combat doping.