(BBC News) The wreck of a German U-boat that sank almost 100 years ago has been discovered by engineers laying subsea power cables.

Remarkable sonar images show the missing World War One submarine is largely intact and lying off the Galloway coast.

Experts believe the vessel could be the UB-85, a sub that sank in 1918, according to official records.

However, naval folklore suggests it may have been attacked by a “sea monster”.

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