Sunken WWI sub is leaking TNT into the North Sea

Germany's UC-30 struck a British mine on April 19, 1917. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. Researchers required assistance from Danish naval divers to examine the submarine. A World War I submarine that sank nearly 110 years ago has been leaking explosive pollutants into the North Sea for decades. What's more, ocean researchers say the problem may worsen over time--not only near the German vessel itself, but at thousands of similar shipwrecks .