and commenced maneuvering at to avoid possible attack when her radar picked up an unidentified plane closing the formation from the east. Three minutes later, the cruiser fired three rounds of 6-inch projectiles in the direction of the intruder to warn her—it turned out to be a British Short Sunderland flying boat on patrol. At 21:43, Worcester secured from battle stations and resumed her cruising with TF 77. There was one more day of flight operations off the Korean coast, 6 September, before Worcester transferred her helicopter to Philippine Sea to clear the ship for a practice anti-aircraft firing. The cruiser later recovered the helicopter before heading for Sasebo, Japan, for replenishment of fuel, ammunition, stores, and provisions. Worcester remained at Sasebo from 7 to 10 September and got underway at 05:32 on 11 September, again with TF 77, and proceeded to the operation area in the Yellow Sea to support a large-scale amphibious assault by United Nations (UN) forces against enemy forces in the Inchon and Seoul areas of Korea. Worcester subsequently supported the Inchon landing — an attack aimed at outflanking the North Korean invaders by a strategic landing behind their lines in South Korea masterminded by General Douglas MacArthur. Worcester screened the fast carrier task forces as their planes dropped lethal loads on North Korean targets ashore until she was detached on 20 September to conduct a shore bombardment mission as part of TG 95.2 in the vicinity of Pohang Dong. Proceeding to the objective via the straits north of the Quelpart Islands and west of Tsushima, the light cruiser rendezvoused with three miles off the east coast of Korea and 12 miles north of Pohang Dong. Over the following days, Worcester patrolled off the coast with TG 95.2. She relieved Helena in her fire support duties at 06:00 on 24 September, freeing the heavy cruiser to proceed to Sasebo. While her own helicopter was aloft providing anti-submarine screening, Worcester commenced firing at 08:05, shelling nine North Korean troop concentrations ashore. Directed by Korean Military Advisory Group (KMAG) personnel ashore, Worcester delivered call-fire throughout the day with pinpoint accuracy at troop concentrations and command posts. Relieved by as fire support ship, Worcester patrolled in company with to seaward of the fire support area for the night. Worcester returned the following day and resumed her fire support duties, adding to the troubles of the retreating North Korean forces.