With Commander, Destroyer Division 172, embarked on "Twining", the destroyer joined the screen of Fast Carrier Task Force 77 late in September and also supplied counterbattery fire in support of minesweepers in the vicinity of Hungnam. In October, "Twining" operated in the waters of Tongjoson Bay, participating in the interdiction of Wonsan harbor where she engaged shore batteries and fired on buildings, road intersections, and railroads. She occasionally supplied fire called for by aircraft or shore fire control centers. On 9 October, the destroyer scored a hit on an ammunition storage area setting off a violent explosion and numerous fires.