Kenyan-born Kirwa, who switched allegiance to
Bahrain in 2013 and finished second at the Rio Olympics in 2016,
tested positive for erythropoietin (EPO), a banned
blood-boosting hormone that improves endurance.
"The AIU confirms (a) provisional suspension against... Bahraini
long-distance runner Eunice Jepkirui Kirwa... for a violation of
the IAAF's (International Association of Athletics Federations')
Anti-Doping Rules," AIU said in a statement.
Kirwa becomes the second women's marathon podium finisher at Rio
to test positive for the same substance after Kenyan gold
medalist Jemima Sumgong, who was suspended for four years by her
country's anti-doping agency (ADAK) in 2017.
Sumgong's ban was doubled to eight years by the AIU after the
IAAF found her guilty of providing false information while
defending herself against the initial sanction but was allowed
to keep her gold medal as she tested positive in April 2017.
(Reporting by Rohith Nair in Bengaluru; Editing by Ken Ferris)
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