Pistorius trial day 24 - in 60 seconds

Forensic tests carried out by an expert for Oscar Pistorius' murder trial have been challenged by the state prosecutor in South Africa.

Roger Dixon's sequence for the shots that killed the athlete's girlfriend contradicts that of a police ballistics witness and pathologist.

Mr Pistorius denies intentionally killing Reeva Steenkamp in the early hours of Valentine's Day last year.

He says he fired in fear at a toilet door, mistaking her for an intruder.