SEOUL, South Korea – North Korea fired five short-range projectiles into the sea on Monday, Seoul officials said, in a continuation of weapon launches it has carried out in apparent response to ongoing South Korea-U.S. military drills it sees as a provocation. The projectiles launched from a site near the northeastern city of Hamhung flew about 200 kilometers (125 miles) before landing in waters off North Korea’s east coast, South Korea’s Joint Chiefs of Staff said. The South Korean military was attempting to determine whether the projectiles were missiles, artillery shells or rockets. The firings came three days after Seoul said North Korea launched its first medium-range ballistic missile into the sea since early 2014, ignoring U.N.