A visit by a U.S. aircraft carrier to South Korea prompted a warning from the sister of North Korea’s leader that Washington and Seoul “should not test” the communist regime.

The U.S. aircraft carrier USS Carl Vinson arrived at the southern port city of Busan in South Korea on Sunday as a show of force against North Korea, South Korea's navy said. It is the first U.S. aircraft carrier to dock at a South Korean port since U.

A US aircraft carrier arrived in South Korea in a show of force, days after North Korea test-launched cruise missiles to demonstrate its counterattack capabilities.