SEOUL (AFP) - South Korea on Thursday unveiled a home-made interceptor missile designed to counter North Korean ballistic missiles and fighter jets. The new Iron Hawk-II surface-to-air missile, with a range of up to 40 kilometres (24 miles), was displayed at a ceremony in the Agency for Defence Development headquarters in the central city of Daejeon, the agency said. It said that 15 companies were involved in the project, which began in '06. The Iron Hawk-II can intercept air-to-surface guided missiles, the agency said, and can attack multiple targets with a single radar system more accurately than other guided weapons in operation.