King Tutankhamun died from injuries sustained during a chariot race, British researchers say.
Chris Naunton, director of the Egypt Exploration Society, told The Independent newspaper that researchers performed a "virtual autopsy" on King Tut's remains and found he had injuries down one side of his body that were consistent with chariot racing-related injuries.
As well, they said his heart was damaged beyond repair, which is why King Tut's mummy is the only pharaoh missing a heart.
The research will be presented Sunday in a television special on the U.K.'s Channel 4 called Tutankhamun: The Mystery of the Burnt Mummy.
British archeologist Howard Carter discovered Tutankhamun's tomb in November 1922 and there have been several theories as to how King Tut died at the age of 19, including that he had temporal lobe epilepsy, malaria, an infection from a broken leg, or that he had been murdered.