Queensland Reds rugby union player Karmichael Hunt has been charged by Queensland's Crime and Corruption Commission with four counts of supplying cocaine.

The former Australian rugby league player was one of four people - three men and one woman - charged. Hunt is due to appear in Southport Magistrates Court on March 5. News Corp is reporting Hunt's co-accused, a Burleigh Waters man, 24 and a Mermaid Waters man, 27, are both Gold Coast Titans players in the National Rugby League. A Mermaid Waters woman, 22, was also arrested and all three will also appear in court on March 5.

The Australian Rugby Union's integrity team and the Queensland Reds are investigating Hunt's arrest. Both players and management at the Reds are said to be stunned by the developments. The ARU released a statement on Friday morning saying it had been made aware of the reports surrounding Hunt and was seeking more details and would make further comment after making its own inquiries.

It is alleged Hunt and the co-accused arranged for cocaine for personal use or to be passed on to friends or colleagues between June and December 2014.