A US Navy ship that can serve as an expeditionary sea base has been confirmed anchored off the coast of Nagasaki Prefecture in southwestern Japan.
The USS Miguel Keith was seen Sunday anchored at the port of Sasebo, the home of a US naval base.
The ship is one of three expeditionary sea bases operated by the US Navy.
The USS Miguel Keith is about 240 meters long and functions as a base for helicopter takeoffs and landings. It can also provide logistic support for military operations.
The private online site MarineTraffic and other sources indicate that the USS Miguel Keith left Hawaii on September 20.
It was anchored off White Beach Naval Facility in Uruma City, Okinawa Prefecture, on Wednesday, and is believed to have arrived off Sasebo on Friday.
The Miguel Keith was commissioned in May this year.
The US Navy said on Thursday that the ship's maiden deployment to the 7th Fleet based in Yokosuka would enhance operations capabilities to defend a free and open Indo-Pacific region.
It is believed the deployment was made in response to China's expanding maritime activities.