She was beached in the Oslofjord , Norway the next day .
World War II : The minesweeper struck a mine laid by HMS Narwhal ( Royal Navy ) in Kattegat .
minesweeper was beached in the Oslofjord , Norway the next day .
World War II : The minesweeper struck a mine laid by HMS Narwhal ( Royal Navy ) in Kattegat .