On Dec. 17, 1917, the U.S. submarine USS F-1 was lost at sea during a training accident off the coast of California, killing 19 crew members on board. Now, more than a century after it sunk, ...

Researchers have located the wrecks of two long-lost military vehicles on the seafloor a few miles from San Diego: an American submarine that sank during a training accident in 1917, and a U.S. Navy ...

The USS F-1 submarine, sunk in 1917, has been discovered and mapped in 3D using advanced technology at a depth of 1,300 feet.

SAN DIEGO (Storyful/CBS Newspath/WKRC) - Researchers have discovered the USS F-1, a World War I-era submarine, which had been lost at sea for 108 years. The vessel was found off the coast of San Diego ...

SAN DIEGO (FOX 5/KUSI) — A team of researchers captured high-definition pictures of a sunken World War I-era U.S. Navy submarine off the coast of San Diego, over a century after it was lost at sea.

Krystin Schei gasped and beamed with joy Thursday when a dark, menacing vessel sidled up to a pier at Naval Base Point Loma, a heavily-guarded nook in San Diego Bay. The fast-attack submarine USS ...