Two U.S. aircraft carriers have started military exercises together in the Sea of Japan, U.S. Navy officials tell VOA.

"The USS Carl Vinson Strike Group and USS Ronald Reagan Strike Group are conducting routine operations in the Western Pacific," Navy spokesman Lt. Loren Terry said.

Officials said the carriers, along with the ships and aircraft assigned to each, began dual operations in international waters within the sea on Wednesday.

The dual-carrier exercises come days after North Korea launched another missile into the Sea of Japan.

