The Navy has begun releasing documents from the investigation into the deadliest submarine disaster in U.S. history.
A judge ordered the release of the documents pertaining to the sinking of the USS Thresher 57 years ago, and the first batch was made public Wednesday.
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The Navy will release more information in coming months but doesn't believe the documents will shed any new light on the cause of the sinking.
The nuclear-powered submarine, which was first launched from Portsmouth Naval Shipyard in 1960, went down in 1963 during a test dive. All 129 men aboard were lost.
The submarine came to a rest on the ocean floor, about 220 miles off Massachusetts' Cape Cod.
- David Sharp, The Associated Press
