South African athlete Pistorius in night club altercation

Olympic and Paralympic track star Oscar Pistorius gestures during his trial for the murder of his girlfriend Reeva Steenkamp, at the North Gauteng High Court in Pretoria July 8, 2014. REUTERS/Siphiwe Sibeko

JOHANNESBURG (Reuters) - South African Olympic and Paralympic track star Oscar Pistorius was involved in an argument at a night club over the weekend, his spokeswoman said on Tuesday, days after his lawyers wrapped up their defence in his murder trial.

The Star newspaper said Pistorius had an altercation with businessman Jared Mortimer at a club in Johannesburg's upmarket Sandton business district after the athlete made disparaging comments about Mortimer's friends.