The stay in Sasebo, however, proved a short one for "Worcester", because she got underway on the 30th to return to Korean waters to resume her fire support and interdiction duties. At 0600 on 1 October, "Worcester" joined the blockading force off the east coast of Korea, south of the 41st parallel, ready to render gunfire support for UN troops advancing against North Korean forces. As she patrolled off the coast, "Worcester" launched her helicopter to conduct anti-submarine and anti-mine patrols and frequently stationed lookouts in the bows of the ship, their eyes peeled for mines. Periodically, the screening destroyers found and destroyed mines drifting nearby.