North Korea on Tuesday launched an unidentified projectile off its east coast, the militaries of South Korea and Japan said, marking a second report of a missile launch in under a week. Less than a week after North Korea fired what it claimed to be a “hypersonic” missile, South Korea’s Joint Chiefs of Staff (JCS) sent out an alert of another launch. JCS said in a media statement that the launch was detected around 7:27 a.m. from an inland area of North Korea toward the ocean off its east coast. Japan’s Prime Minister’s Office and Defense Ministry said the North Korean weapon was possibly a ballistic missile, while the Kyodo news agency reported that the projectile appeared to have landed outside Japan’s exclusive economic zone (EEZ), citing government sources in Tokyo. The launches by nuclear-armed North Korea this month follow a series of weapons tests last year that underscored how …