Monaco, Aug 27 (IANS) The Athletics Integrity Unit (AIU) on Tuesday said that former 800m world champion Maryna Arzamasova of Belarus has been provisionally suspended after testing positive for a banned substance with just one month to go for the 2019 IAAF World Championships in Doha, Qatar.

"The AIU confirms a provisional suspension against Belarusian middle-distance runner Marina Arzamasova for a violation of the IAAF Anti-Doping Rules," said the AIU in a tweet.

The AIU said in its website that Arzamasova has been tested positive for LGD-4033, a substance with similar properties to anabolic steroids that is prohibited by the World Anti-Doping Agency.

Arzamasova had won gold ath the 2015 World Championships that were held in Beijing.

--IANS rkm/prs