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.??[Photo/Agencies]

Oscar Pistorius, currently on trial for the shooting death of his girlfriend, has been involved in an argument at a trendy Sandton nightclub in South Africa, his rep confirmed on Monday.

The incident took place at the VIP Room on Saturday night, a venue known for its high–end clientele and A–list guests.

Pistorius' media representative Anneliese Burgess has confirmed that there has been an altercation, but denied it was a case of a "bar brawl" as some media outlets reported.

"We can confirm that Oscar was at the said venue with one of his cousins. They sat in a quiet booth in the VIP section when they were approached by an individual who has now been identified as a Mr. Mortimer," said Burgess.

"The individual, according to my client, started to aggressively interrogate him on matters relating to the trial," Burgess added. "An argument ensued during which my client asked to be left alone. Oscar soon thereafter left the club with his cousin. My client regrets the decision to go to a public space and thereby inviting unwelcome attention."

The Olympic and Paralympic athlete is on trial in the North Gauteng High Court in Pretoria for murdering his 29–year–old girlfriend Reeva Steenkamp on Valentine's Day last year.

He says he shot her by accident thinking she was an intruder but the state maintained a case of premeditated murder.

When the matter resumes in early August, both the state and defesce teams will deliver closing argument.

But Jared Mortimer, who was the other party to the squabble, told EWN that Pistorius was drunk and insulted his friends before poking him in the chest.

Mortimer said he pushed the athlete backwards off his feet and onto a chair when bouncers intervened to stop an all–out brawl.