The four-time Asian Games gold medallist and 2016 world indoor 400m champion has tested positive for an anabolic steroid

Bahrain's Kemi Adekoya has been provisionally suspended after testing positive for the banned substance stanozolol, the Athletics Integrity Unit has announced.

The AIU confirms a Notice of Allegation against #Bahraini 400m #sprinter Oluwakemi Adekoya for violations of Article 2.1 of the @iaaforg Anti-Doping Rules. Find out more: https://t.co/Cq4Q2MR0LJ#AIUNews #athletics #trackandfield #antidoping pic.twitter.com/gugsrFUs4H

— Athletics Integrity Unit (@aiu_athletics) January 14, 2019

The 25-year-old, who was born in Nigeria, is a four-time Asian Games gold medallist and claimed world indoor 400m gold in Portland in 2016 after breaking the Asian record with her winning time of 51.45.

Confirming a 'notice of allegation' against the athlete, the Athletics Integrity Unit stated that Adekoya tested positive for the anabolic steroid in November.

Adekoya's four outdoor Asian Games gold medals were won in the 400m hurdles and mixed 4x400m in 2018 and the 400m and 400m hurdles in 2014.

Her 400m hurdles PB of 54.12 is also a national record.

Also on Monday, the Athletics Integrity Unit announced that Kenya's 2006 Commonwealth 10,000m champion Lucy Kabuu Wangui had been handed a two-year ban after testing positive for morphine.

Her ban runs from August 1, 2018, with her results from April 8, 2018, to August 1, 2018, to be disqualified, which includes her win at the Milan Marathon.

That case's current status is ' decision appealable'.