Athlete's mother: 'She's a girl'

Caster Semenya - who won the women's 800 metres at the World Athletics Championships in Berlin - is definitely a girl, her mother Dorcus insists.

The South African athlete, who is 18, has been asked by the International Association of Athletics Federations to undergo a gender test.

Her mother told the BBC's Jonah Fisher in South Africa: "It's my girl... I gave birth to that girl from my womb."