The USS Michigan, an Ohio class submarine capable of carrying 24 ballistic missiles, was spotted at the South Korean port of Busan on Tuesday as it prepares to join the USS Vinson aircraft carrier strike group, according to Fox News.

The news comes just one day before all 100 U.S. senators are scheduled to meet at the White House for a briefing with Secretary of State Rex Tillerson, Secretary of Defense Jim Mattis, Director of National Intelligence Dan Coats and General Joseph Dunford, chairman of the Joint Chiefs of Staff on Wednesday.

"U.S. Navy ships and submarines routinely make port calls in a variety of locations," Lieutenant commander Matt Knight of the U.S. Pacific Fleet said. "As a matter of routine, we do not discuss future operations or the details regarding the operations of our submarines. USS Michigan is currently on a routine deployment to the Indo-Asia-Pacific."

The Ohio class submarine is one of the most devastating weapons in the U.S. arsenal.