BY A STAFF REPORTER: North Korea fired at least three short-range ballistic missiles from a site south of Pyongyang on Saturday, according to South Korea’s Joint Chiefs of Staff, the latest in an unprecedented year of weapons testing. Joint Chiefs said the projectiles were fired from the Chunghwa area of North Hwanghae province at around 8 a.m. local time Saturday. Japan’s Defense Ministry said three ballistic missiles – each with a maximum altitude of approximately 100 kilometers (62 miles) and a flight distance of roughly 350 kilometers (217 miles) – had fallen into waters off the east coast of the Korean Peninsula, outside Japan’s exclusive economic zone.