Medieval shipwreck discovered in Norway during hunt for WWII ammunitions

Archaeologists have discovered the remains of a mysterious vessel that could be one of Norway’s oldest shipwrecks, during an effort to locate tons of unexploded ammunition dumped on the bottom of a lake near Oslo. 

Sonar images show the hull of the 33-foot-long (10 meters) wooden ship at a depth of about 1,350 feet (410 m) beneath the surface of Lake Mjøsa, about 60 miles (100 kilometers) north of the Norwegian capital.

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