The U.S. Coast Guard said it detected and tracked a Russia military spy ship just miles off the coast of Hawaii, the latest incident of a Russian vessel or plane operating close to the U.S. The Russian intelligence vessel, Kareliya, was spotted about 15 nautical miles south of Oahu on Oct. 29, the Coast Guard said Thursday.

The U.S. Coast Guard detected a Russian military vessel — The Russian Federation Navy Auxiliary General Intelligence ship Kareliya, a Vishnya-class intelligence ship —operating near U.S. territorial w...