Munguti, a 17-year-old former African Youth Games 800m silver medallist tested positive for Norandrosterone, a metabolite of anabolic steroid Nandrolone, AIU, the independent anti-doping watchdog for track and field, said in their decision.

The drug showed up in a sample taken on Oct 7, 2018 in an out-of-competition doping control programme at the Summer Youth Olympics in Buenos Aires.

Her ban is from the date of the test.

Munguti, the first Kenyan teenager to be banned for doping, joins a growing list of runners from the running powerhouse to fail drug tests.

Forty-three Kenyan athletes, including the women’s 2016 Olympic marathon champion Jemima Sumgong and three-time world 1,500m winner Asbel Kiprop have been banned this year.

Earlier in November, two top long distances athletes, Abraham Kiptum and Cyrus Rutto, were suspended for four years each by AIU for using prohibited substances.