The International Association of Athletics Federations (IAAF) on has slammed an eight year doping ban on 20 year old Nigeria international athlete, Tosin Adeloye.

The 400 metres champion who represented Nigeria at the 2015 IAAF World Championships in Beijing, China was among the 12 athletes from various parts of the world whose ban for doping were confirmed by in a statement on the website of the IAAF.

The world athletics governing body said the confirmation of the ban on the athlete who also represented Nigeria at the 11th All-Africa Games (AAG) in Brazaville, Congo was was based on information it received as of May 25.

It said the 20-year-old was banned for eight years after an in-competition test she took at the Warri Relays on July 24, 2015 turned out positive.

The ban on Adeloye will span July 24, 2015 to July 23, 2023.

News Agency of Nigeria (NAN) reports that the Warri Relays was a Super Grand Prix under the auspices of the African Athletics Confederation (CAA).

All 12 athletes on the list have bans ranging from six months, as the shortest, and eight years as the longest.

The list has four athletes from India, two from Morocco, one from Sweden, one from Colombia, one from China, one from Italy and one from Central African Republic