The Sunday Times is reporting that its journalists witnessed Oscar Pistorius' sibling breaking prison rules for the disgraced stars birthday.
It claims that the siblings, Carl and Aimee, were spotted bringing in balloons, cake and gifts - even though prison rules stipulate goods should be bought inside the prison.
It also says the siblings were allowed to bring their cars inside the prison gates and that they were not searched.
According to the rules, visits should only be an hour long, yet Oscar's siblings were there for over two hours.
Prison officials still deny that he is receiving preferential treatment and say an investigation is underway.