Oscar Pistorius: 'I made a terrible mistake'

The South African state prosecutor has begun his cross-examination of the athlete Oscar Pistorius.

Responding to questions from Gerrie Nel, Mr Pistorius has said he "made a mistake" when he shot his girlfriend Reeva Steenkamp in his home.

The athlete denies deliberately shooting dead Ms Steenkamp on Valentine's Day last year, arguing he mistook her for an intruder.