HOLLYWOOD stuntman and Chris Pratt's longtime double Tony McFarr's cause of death has been revealed.

On Wednesday, TMZ reported that Tony died from a heart issue that was likely caused by heavy drinking.

The outlet cited official documents from Florida's Orange County Medical Examiner's office.

According to the paperwork, the medical examiner found Tony's death was caused by an irregular heartbeat, noting an issue with his heart's valves.

The coroner determined that acute alcohol poisoning and chronic obstructive pulmonary disease (COPD) contributed to the stuntman's death in May this year.

COPD is the name for a group of lung conditions that cause breathing difficulties.