The search was resuming today for a diver who went missing as he explored a wreck yesterday afternoon, coastguards said.
The 30-year-old man, said to be an experienced diver, was diving with a partner to the wreck Wallachia, a century-old cargo vessel sunk 34 metres deep off the south-west coast of Scotland.
He took his oxygen tank off to go into the wreck itself at about 5.30pm yesterday and has not been seen since, said Mark Clark, of the Maritime and Coastguard Agency.
His colleague rose to the surface to raise the alarm and then returned to the wreck to take an extra oxygen tank down, but the diver had disappeared.
MCA spokesman Mr Clark said the diver only had a ‘‘limited supply of air’’.
Divers, a Royal Navy rescue helicopter from Prestwick, the Royal Navy minesweeper HMS Cattestock, a cabin cruiser and inshore lifeboats were all involved in the air and sea search last night.
Visibility under the water was said to be very poor and officials last night described the situation as ‘‘pretty grim’’.
The wreck, a popular destination with divers, lies less than a mile off Toward Point, four miles south of Dunoon.