Archaeologists have discovered what could be one of Norway's oldest shipwrecks during a hunt for undetonated World War II ammunition.
Newly released 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 (100km) north of Norwegian capital, Oslo.
Maritime archaeologist Øyvind Ødegård told Live Science that the construction of the shipwreck suggests that it was built up to 700 years ago, soon after the transition from Viking ships to medieval designs with a recognisable bow and stern.
