LONDON (AP) — The World Marathon Majors series says it has postponed Sunday’s awards ceremony because of reports that Kenyan runner Rita Jeptoo has tested positive for doping.

The series says “no athlete can win the World Marathon Majors Series title who has been in breach of IAAF anti-doping rules.”

According to a report on the website RunBlogRun, the 33-year-old Jeptoo tested positive in an out-of-competition test in September, a few weeks before winning her second straight Chicago Marathon title.

The IAAF has not yet made an announcement on the case.

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