Iranian climber Elnaz Rekabi reportedly under house arrest

Large crowds of supporters turned out to greet the 33-year-old on her return to Tehran , but the source told BBC Persian that she did not go home after arriving at the airport.

On Friday, a New York-based human rights group called on the International Federation of Sport Climbing to do more to protect her.

Fears had been raised about the fate of Rekabi after friends had reportedly been unable to contact her following the end of her involvement in the competition in Seoul.

Upon her return to Tehran, Rekabi apologised over what happened and insisted her headscarf had accidentally slipped off.

But activists expressed fears at the time that her comments had been made under pressure from Iranian authorities.

Human rights groups and activists have repeatedly accused the Islamic republic of coercing people into making statements of contrition on television or social media.