An initial assessment has indicated that British TV host Michael Mosley, whose remains were discovered on the Greek island of Symi, probably died from natural causes.

The 67-year-old's body was located on Sunday, five days after he was last seen during a hike.

Mosley's remains were transported to a state hospital on the nearby island of Rhodes, where a preliminary post-mortem on Monday concluded he died of natural causes.

Coroner Despina Nathena informed Greece's public broadcaster, ERT, that Mosley's death did not seem to be the result of a criminal act. Nathena could not “precisely determine the cause of death” due to the delay in discovering his body.

Greek police spokeswoman Konstantia Dimoglidou told the BBC that the initial post-mortem found no external injuries on Mosley’s body that might have caused his death.

After a four-day search, Mosley’s body was located near the base of a steep incline, lying face up.

During the recovery operation, one police officer slipped on the slope and had to be evacuated on a stretcher, according to local reports.

Mosley's wife mentioned that her husband took an incorrect path during his hike and collapsed just before reaching a marina, in an area where his body was not immediately visible.

Symi's Mayor Lefteris Papakalodoukas commented to ERT that the island was experiencing “unbearable heat” and that the area where Mosley was last seen was “challenging because it's very rocky”.

Mosley is recognized for a series of British television shows, including the BBC’s Trust Me, I’m a Doctor, and several documentaries focusing on diet and fitness, such as Channel 4’s Michael Mosley: Who Made Britain Fat?

Having studied medicine in London, Mosley also appeared on radio and contributed as a columnist to the Daily Mail newspaper.