The International Olympic Committee says "no decisions have been taken yet" amid reports transgender athletes could be banned from the female category in all Olympic events.
It was reported on Monday that athletes born male were set to be barred, after a scientific review found male advantages remained even after athletes took steps to reduce testosterone levels.
The formation of a working group looking at the protection of the female category was one of the first acts of new IOC president Kirsty Coventry when she formally succeeded Thomas Bach in June.
The IOC confirmed on Monday that its medical and scientific director Dr Jane Thornton had updated IOC members last week on the initial findings of a scientific review, but a spokesperson said: "The working group is continuing its discuss

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