U.S. nuclear-powered submarine arrives at South Korea's Busan port -Yonhap

A U.S. nuclear-powered submarine has arrived at a port in the South Korean city of Busan, news agency Yonhap reported on Friday.

It is the first time in nearly six years that a submarine classified as "SSGN" by the U.S. Navy, or a cruise-missile submarine, has stopped off in South Korea, the report noted.