The U.S. nuclear-powered fast attack submarine the USS Cheyenne (SSN 773) arrived at Busan port, South Korea on Tuesday armed with Tomahawk cruise and Sub-Harpoon antiship missiles, the Commander of U.S. Naval Forces Korea (CNFK) announced.

The CNFK said the entry of USS Cheyenne, a Los Angeles-class submarine, is “a routine visit during a regularly scheduled deployment to the Western Pacific,” and did not provide further details.

This is the third visit of a U.S. nuclear-powered submarine open to the public in South Korea since March.

The U.S. Navy’s largest submarine, the USS Michigan (SSGN 727), arrived in Busan in late April