Just weeks after announcing plans to continue the search for two British explorer ships, HMS Erebus and HMS Terror, the Prime Minister has revealed that one of the two ships has been found. Further analysis is needed to determine which one of two ships that vanished in the Arctic more than 160 years ago it is. Sir John Franklin led the two ships and 129 men in 1845 to chart the North West Passage in the Canadian Arctic. Expedition sonar images from the waters of Victoria Strait, just off King William Island, clearly show the wreckage of a ship on the ocean floor.The find was been described as "the biggest archaeological discovery the world has seen since the opening of Tutankhamun's tomb almost 100 years ago" by British archaeologist, William Battersby, who has written extensively about the Franklin expedition. The government began searching for Franklin's ships in 2008 as part of a strategy to assert Canada's sovereignty over the Northwest Passage.