An Olympic competitor has become the first to claim political asylum in Britain at this year's Games.
The man, believed to be an African middle distance runner in his 20s, was being held by the UK Borders Agency last night after walking into a police station in Leeds.
The move follows warnings from immigration officials that they fear up to two per cent of athletes, team officials and supporters may claim refuge in the UK or try to stay here once their visas expire.
It is understood the athlete disappeared from a training camp as he and his team were preparing to move to London.
The sportsman, whose identity was not revealed by the authorities, claimed he was a victim of persecution in his homeland.