The search for missing TV presenter Michael Mosley is to resume for a fourth day.

The 67-year-old, known for his TV programmes and his Just One Thing podcast which airs on BBC Radio 4, vanished on Wednesday while on holiday on the Greek island Symi.

Dr Mosley was reported to have left Agios Nikolaos beach by foot on Wednesday at 13:30 local time (11:30 BST), with CCTV appearing to show him in the nearby village of Pedi roughly 20 minutes later.

A search and rescue operation, involving divers, helicopters and drones, will start up again on Saturday morning after being called off as dusk fell on Friday.

The CCTV images appear to capture the broadcaster in Pedi’s main street holding an umbrella.

The BBC has seen a second piece of CCTV footage from a nearby premises showing a man wearing the same clothes and carrying the same umbrella which was time stamped at 13:50.

Officials are now understood to be excluding the possibility the father-of-four came to harm while walking between the beach and village.

Separate CCTV, from a house at the edge of Pedi’s marina at the far end of the village, shows Dr Mosley later entering a mountain path, which runs inland rather than hugging the coast, at about 14:00 local time, the PA news agency said.

A member of the rescue team described the search as a “race against time” and said he could be “anywhere”.

“The path is not easy to follow, if he took a wrong turn, he would be lost,” she told PA.

All patrol boats, private boats and commercial boats near the island have been searching for Dr Mosley, Symi’s coastguard said, while police and firefighters have been using drones and a sniffer dog to try to locate the missing presenter,

Divers have been “looking into the water” with the help of the Hellenic Coast Guard, deputy mayor Ilias Chaskas told BBC News.

Greek police said Dr Mosley left his wife Clare on the beach on Wednesday, before setting off on a walk to the centre of the island.

His phone was found where he was staying with his wife, who reported him missing, a police spokesperson told BBC News.

An appeal saying he was missing was posted on a local Facebook group on Wednesday, alongside a picture of Dr Mosley wearing a blue cap, polo shirt and shorts.

“Have you seen this man? He set off to walk back from [Agios Nikolaos beach] at about 13:30 and failed to make it home,” it said.

His three adult sons and one daughter have flown to the island to join the search, Dr Mosley’s brother Arthur told the Telegraph on Friday.

He said: “We are very shocked and perplexed by what has happened to him.”

Symi is part of Greece’s Dodecanese island group and sits about 12 miles (19km) north-west of Rhodes. In the 2021 census it had a population of approximately 2,600 people.

The majority of its beaches are remote and people are advised to take boats to visit them.

Father and daughter Antonis and Maria, who have lived on Symi all their lives, said his disappearance is shocking and confusing.

“This is crazy,” Antonis told BBC News.

“The place is very small. A little kid can’t get lost here. How does a man get lost?”

Before moving into TV, Dr Mosley studied medicine in London and qualified as a doctor but for the last couple of decades has been working as a presenter, documentary maker, journalist and author.

He writes a column for the Daily Mail and his TV programmes also include Channel 4 show Michael Mosley: Who Made Britain Fat?

Dr Mosley has been an advocate for intermittent fasting diets, including the 5:2 diet and The Fast 800 diet.

He has four children with his wife Clare Bailey Mosley, who is also a doctor, author and healthy living advocate.

The couple recently appeared at the Hay Festival where Dr Mosley presented a special edition of BBC Radio 4’s Just One Thing.

Reacting to the “shocking news”, his fellow Trust Me, I’m A Doctor co-star Dr Saleyha Ahsan said she was “praying he is found safe” and she feels “sick with worry”.

On Thursday’s edition of The One Show, presenter Alex Jones opened the programme by expressing concern that “our friend” had gone missing.

“Our thoughts are very much with his wife Clare and the rest of his family at this worrying time. We hope for more positive news,” she added.