Where is Michael Mosley? What you need to know about the missing TV doctor

Mr.Michael Mosley, a British television doctor, disappeared on the Greek island of Symi on Wednesday while on vacation. Mosley is known for his appearances on British programs such as This morning And The only show. The 67-year-old is a regular columnist for Daily Mail and has presented several shows on diet and exercise, including Michael Mosley: Who made Britain fat? documentary. He was also part of the BBC series Believe me, I'm a doctor.

Mosley was last seen on Wednesday around 1:30 p.m. local time when he went for a walk on the beach in Saint Nikolas on the island. At 3 p.m., his wife, Clare Bailey Mosley, noticed he still hadn't returned to where they were staying, according to Sky News. Around 7:30 p.m., she reported the problem to the police and Greek authorities began looking into it. Mosley did not have his mobile phone with him, as it was found in his hotel, a police spokesperson told the BBC.

Weather conditions were very hot when Mosley left. The Athens National Observatory reported temperatures above 100°F on Wednesday.

A spokesperson for the British Foreign Office confirmed that the British government was in contact with the Greek authorities. “We are supporting the family of a British man missing in Greece and are in contact with local authorities,” the Foreign Office said in a statement emailed to TIME.

Greek police told TIME in an emailed statement (provided in Greek and translated into English using Google Translate) that the investigation is in full swing. “Investigations are carried out by the firefighters with the help of the Greek police, civil protection, volunteers and a police dog, while technical means such as drones are also used to locate the missing person,” they clarified.

Search efforts have intensified over the past two days. Friday morning, a mix of 25 volunteers, police and firefighters were working to find Mosley. Divers, drones and sniffer dogs have also been recruited to assist in searches on and above the island and its surrounding waters.

Eleftherios Papakalodoukas, the mayor of Symi, said he thought the most likely explanation was that Mosley had left the path or gotten lost in the sea. “It's a very small controlled area, full of people , so if something happened to him there, we would have found him by now,” he was quoted as saying by the BBC.

Thursday evening, presenter Alex Jones who hosts The only show on the BBC opened the program by expressing concern for Mosley. “Our thoughts are with his wife Clare and the rest of his family at this worrying time. We are hoping for more positive news,” she said.