Worries grow for British doctor and TV presenter who went missing in Greece

Greek police say an ongoing major search and rescue operation on the small eastern Aegean island of Symi has still not located British doctor and television presenter Michael Mosley, who went missing on Wednesday afternoon after reportedly going for a walk.

Police said Friday that the coast guard, police and fire department were involved in the search, with a helicopter, drones and a police sniffer dog deployed. They have found no trace of the 67-year-old who had been vacationing on the island.

The search was focusing on the area between Agios Nikolaos, the coastal area from where Mosely apparently set off on his walk, and the island's main town of Symi. Authorities had also looked into whether he might have left the island altogether, but found no indication that anyone had travelled under his name.

Britain's Foreign Office said it was in contact with Greek...