Former Melbourne 2006 Commonwealth games 10,000m champion, Kenya’s, Lucy Wangui Kabuu, 34, has been provisionally suspended following a failed drug test for morphine.

“The AIU has issued a notice of charge against Lucy Kabuu for a violation of Article 2.1 of the Anti-Doping Rules. The Kenyan marathon runner has been provisionally suspended from all competition,” AIU statement read in part.

The Kenyan veteran is currently ranked 13th on the all-time list over 26.2 miles with 2 hours 19min 34sec set in Dubai in 2012.

According to the AIU, Kabuu’s suspension takes effect on Aug. 1 after her blood samples showed presence of morphine, a prohibited substance under Article 2.1 of the anti-doping rules.