An Aberdeenshire brewery has launched a beer brewed at the bottom of the North Sea.

The Fraserburgh-based BrewDog have released Sunk Punk, the first beer to be brewed underwater.

The 7.1% pale ale is said to contain a host of maritime-themed ingredients, including buckweed, distilled sea-salt and rum.

The brewery, known for its experimental and often controversial creations, dropped a specially-modified fermentation tank into the sea on June 27.

The tank was sunk to a depth of 20m, where the water would have a steady temperature of 10C .

Two weeks later the team returned to retrieve their sunken treasure which was hoisted back onto dry land full of successfully fermented beer.

BrewDog co-founder James Watt said: “Sunk Punk is an example of how beer can save the world.

"Not only does it provide an alternative to the fizzy, pathetic mainstream lagers peddled by giant monolithic breweries, it will be solely responsible for halting any superstition-related storms on our coastline.

“This is history in a glass. This is human achievement. This is science meets superstition. This is the latest marketing gimmick from BrewDog."