Aimee (R), sister of Olympic and Paralympic track star Oscar Pistorius is seen chatting to Reeva Steenkamp's mother,June (L) as her long time firend Jenny Strydom looks on ahead of Pistorius' murder trial at the North Gauteng High Court in Pretoria, Monday, 17 March 2014. Pistorius is on trial for murdering his girlfriend Reeva Steenkamp at his suburban Pretoria home on Valentine's Day last year. He says he mistook her for an intruder. Picture: Siphiwe Sibeko/Reuters/Pool

Pretoria - A firearms dealer was called to testify in Oscar Pistorius's murder trial in the High Court in Pretoria on Monday.

Sean Rens described himself as a “firearms service provider” as prosecutor Gerrie Nel asked him what business he was in.

Rens told the court he met Pistorius in May 2012 when Rens's friend Justin Divaris introduced them.

Pistorius was looking for a Smith and Wesson 500 revolver and asked Rens to find one for him.

“Over a number of months he bought a number of firearms,” Rens said.

Pistorius is accused of the premeditated murder of his girlfriend Reeva Steenkamp in his Pretoria home on February 14 last year. He shot her through the closed door of his toilet, apparently believing she was an intruder.

In addition to the murder of Steenkamp, Pistorius is charged with contraventions of the Firearms Control Act. He allegedly fired a shot from a Glock pistol under a table at a Johannesburg restaurant in January 2013.

On September 30, 2012, he allegedly shot through the open sunroof of a car with his 9mm pistol while driving with friends in Modderfontein.

Reeva Steenkamp's mother June was back in the High Court in Pretoria, for day 11 of Oscar Pistorius's murder trial.

She arrived alone and took her seat on the right side of the first row of the public gallery shortly before 9am. She has so far only attended the first day of the trial, on March 3.

Shortly after June Steenkamp took her seat, Pistorius, dressed in a black, arrived without a glance in her direction.

He sat down in the dock, took off his glasses, and began looking through his bag.

His sister, Aimee, approached June Steenkamp and kneeled at her feet, speaking to her. They nodded and patted each other's hands. - Sapa