An autopsy at Surat Thani Hospital found that Australian sports icon Shane Warne had died a natural death, Thai police confirmed.

Warne's family and Australian Ambassador to Thailand Allan McKinnon were informed of the outcome and accepted the findings, said Deputy Police Spokeswoman Kissana Phathanacharoen in a statement.

“Today investigators received the autopsy result, in which the medical opinion is that the cause of death is natural,” Phathanacharoen said, according to Channel News Asia.

“Investigators will summarise the autopsy result for prosecutors within the timeframe of the law.”

Warne's body will be handed over to Australian consular officials for return to his family, Phathanacharoen said.

Meanwhile, Thai authorities are investigating a possible security breach involving Warne's body, which was captured in the film.

German woman entered an ambulance with Warne's body and sat alone in the car for more than half a minute, according to news channel.

It is understood that the Thai authorities have been told that Mrs Warne can personally, which will allow them access to show respect.

The images showed a woman carrying a small bouquet of flowers and approaching an ambulance with the body of Warne from Koh Samui, where she died, taking a ferry to the mainland.

He was accompanied by a Thai woman who spoke to authorities near the entrance to the ferry, immigration officials said.

According to the report, the woman says in English, “yeah, yeah she knows him”, followed in Thai by, “thank you very much, she’s a friend”.

They are both then escorted through parked cars to the ambulance where the German woman approaches the driver side window, holding up the flowers to show the driver.

Then they both escorted the parked cars to the ambulance, where the German woman arrived at the driver's window with flowers, which she showed the driver.

On Monday, members of Warne's family paid a sincere tribute to the cricket icon after his shocking death.

Shane's parents, Keith and Brigitte, his brother Jason, his children, Jackson, Summer and Brooke, and his ex-wife Simone, made statements on Monday.

Keith and Brigitte have described the Warne family's "nerver-ending nightmare" for the past three days, while Jason called it a "truly heartbreaking" suffering.

After the sudden death of his father, Jackson promised to "try to be happy," while Summer Shane described it as “the best dad someone could ever ask for”.

Simone offered the briefest statement, sharing a powerful quote: “Who bring a light so great to the world that even after they have gone the light remains.”