Block was previously convicted of corruption and handed a 15-year sentence in 2015 for using his political influence to solicit bribes while serving as a Northern Cape provincial official.
Former ANC Northern Cape leader John Block was arrested by the Hawks on Tuesday and is due to appear in court in connection with a R51m tender fraud charge related to a mental health hospital construction project.
Block, who was sentenced to 15 years imprisonment for corruption, briefly appear before the Upington Magistrate’s Court on Tuesday morning and the case has been postponed to 11 July and transferred.