BRITISH TV doctor Michael Mosley vanished on Wednesday while holidaying on the tiny Greek holiday island of Symi.
A major search and rescue operation is underway to locate the 67-year-old presenter as his family vow they will "not lose hope".
9
9
9
At least a hundred cops, firefighters and volunteers are combing over mountainous terrain as they attempt to trace Mosley's final movements.
The mystery behind the BBC presenter's disappearance has continued to deepen after CCTV footage emerged of him walking quickly out of a village towards the rocky hills on Wednesday.
Cops revealed it helped to rule out the possibility the doctor had fallen into the water and shifted the search focus to a far wider and more dangerous 7km area.
Four gruelling days into the search, Symi's mayor questioned how anyone could survive in the scorching heat that has enveloped the island.
read more on michael mosley
Dr Claire Bailey Mosley, who has now been joined by her four children, said today that the days since her husband went missing have been the "longest and most unbearable".
No trace of her husband has yet been found. A baffled rescuer today remarked "this is a small island...people just don't disappear."
Here The Sun examines the key moments in Dr Michael Mosley's disappearance...
Wednesday 1.30pm: Mosley decides to walk back alone from Saint Nikolas beach where he had been with his wife and two friends to his holiday home in the town of Symi.
Most read in Celebrity
REALITY SHOCK Sharon Osbourne in surprise feud as she takes a savage swipe at Katie Price
doll domination Ashley Roberts leaves nothing to the imagination as she goes braless
ULRIKA JONSSON I loved stripping down for sexy lads' mag shoots that gave men a hot flush
NEW CHAPTER Katie Price breaks silence on JJ split rumours after tell-all book confession
Wednesday 1.52pm: CCTV catches Mosley walking past the Blue Corner cafe in Pedi shielded under an umbrella.
Wednesday 2pm: CCTV footage shows the BBC star leaving Pedi and headed towards a rocky, hilly path in the island's northeast - the last-known sighting of Mosley.
New CCTV shows Michael Mosley walk past marina
Wednesday 3pm: Mosley fails to return from his 20-minute walk despite temperatures soaring to 40C. His phone was left behind at his accommodation.
Wednesday 7.30pm: Mosley's Wife, Dr Clare Bailey, raises the alarm after her husband fails to return.
Wednesday night: Authorities begin to trace Mosley's steps home but are unable to find him.
Thursday 10.30am: Police file a missing persons report and search begins.
Thursday 11am: A desperate appeal is posted on Symi's Facebook group asking locals if they have seen him.
Thursday 12pm: Cops scour the coast for any signs of Mosley as they probe the idea he may have"fallen from a height"on the short hike home from the beach.
Thursday 2pm: Firefighters arrive to help with the search and CCTV begins to be reviewed.
Thursday 3-7pm: Volunteers, police dogs, drones join in the operation.
Thursday 7pm: A helicopter is deployed to conduct an aerial search.
Thursday night: Search operation paused for the evening with the promise of "more men" arriving on Friday.
Friday morning: Search resumes with extra police, divers, coast guards, patrol boats, drones and choppers and temperatures of up to 48C expected.
Sources say that Mosley told pals he was not feeling well before he left to return home alone.
Friday 5pm: First set of CCTV images released of Mosley walking in Pedi under an umbrella near Blue Corner cafe.
Friday evening: Mosley's four adult children, Alexander, Jack, Daniel and Katherine, arrive on Symi to assist with the search.
Friday night: Investigation takes new twist as cops shift focus to new search area after fears he may have taken three-hour trek up mountain path.
Saturday 6am: Police expand search across wider 7km rocky area as Symi's mayor admits the authorities had been looking in wrong area.
Saturday 7am: Search teams and Mayor Papakalodoukas both tell The Sun the route is incredibly “dangerous” and “treacherous” with no shade.
The mayor added that no one "can survive in this weather".
Saturday 10.50am: New CCTV is released showing Mosley's last-known sighting as he leaves Pedi and heads towards the mountainous path.
Saturday 11am: Mayor Papakalodoukas declared there is "no chance" the search will be called off until he is found.
READ MORE SUN STORIES
Saturday 12pm: Mosley's wife Clare says the family will "not lose hope" but confesses the last few days have been "unbearable".
Saturday 3pm: A helicopter flies over Pedi bay towards the mountainous terrain where the hunt for Mosley continues.
ANALYSIS: Retracing Dr Mosley's 'last steps'
By Ed Southgate in Symi
JUST 15 minutes into the walking route Michael Mosley is thought to have taken, I had stumbled, questioned where the path is and sweated a lot.
Locals and other tourists have said the walk is fine - although have warned about snakes - whereas search rescue teams have called it dangerous, treacherous and questioned why the TV doctor would have gone up in the searing midday heat.
While it is certainly doable, it is difficult.
The path is not well sign posted and two tourists, who went on the walk this week, said they had to check their map along the way.
But the mystery of where he has gone grows each day with locals baffled by how someone can disappear on the small island.
A helicopter has been flying low over the mountainous terrain while search teams have the challenging task of walking through the rocky terrain in the searing heat.
Today it reached 36C.
Concern over what could have happened and how is growing by the hour as he remains missing, with the search now in its fourth day.
But wife Clare, who called the last few days “unbearable”, has vowed: “We will not lose hope.”
9
9
9
9
9
9
Who is Dr Michael Mosley?
BY Henry Holloway, Deputy Foreign Editor
DR MICHAEL Mosley is a TV presenter and health expert known for his work with the BBC - with regular appearances on The One Show.
He is a diet expert who advocated for intermittent fasting, low-carb diets and has written books promoting keto.
Born in India, he studied philosophy, politics and economics and worked as a banker before graduating from medical school.
He joined the BBC in 1985 as an assistant producer, and quickly rose through the ranks - becoming a popular presenter.
Dr Michael worked on programmes such The Human Face with Professor Robert Winston - and Inventions that Changed The World with Jeremy Clarkson.
Eventually fronting his own shows and regularly appearing on breakfast television, he gained a reputation as a diet guru.
He also hosted the BBC podcast Just One Thing.
The TV star is married to Clare Bailey, a GP, and they have four children.
