The technology is far from operational. While similar sensors have proven reliable in detecting low-flying aircraft over shallow waters, the challenge could be far greater in the open sea.

China’s new nuclear-battery attack submarine – a unique hybrid boat running on batteries like a conventional sub but which ...

The Royal Navy's next attack submarine is one step closer to entering service after completing a major milestone. HMS Anson was submerged completely in a 'trim dive' at Devonshire Dock in Barrow.

A suspected 'narco-submarine' was discovered partially submerged at the entrance to the Camarinas-Muxia estuary off the coast of Galicia, Spain, on Wednesday. Authorities suspect the vessel was being ...