Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. November 29, 2011 South Korea Holds Live-Fire Drills in Yellow Sea VOA News South Korean warships have carried out live-fire drills in the Yellow Sea, less than a week after holding a large-scale exercise to mark the anniversary of a North Korean attack. South Korean naval officials say the live-fire drills involved destroyers, frigates, patrol boats and high-speed boats. Last week's show of force came on the one-year anniversary of the North's shelling of Yeonpyeong island, which killed four people. It was the first North Korean shelling of a civilian-populated South Korean territory since the Korean War in the 1950s. South Korean Prime Minister Kim Hwang-sik promised last week a tough response to any further attacks. Pyongyang blames the South for the shelling, saying it was in response to a "provocative" South Korean military drill on the island. Some information for this report was provided by AFP. .