North Korea fired several short-range projectiles into the sea off its east coast from its eastern Kangwon province early on Saturday, South Korea's military has said.
The South Korean Office of the Joint Chiefs of Staff said the projectiles flew in a northeasterly direction for about 250km (155 miles) into the sea.
Earlier, South Korea’s Yonhap news agency said a ballistic missile may have been fired, without citing a source.
The launch is the first by the North since it test-fired a missile on July 28th that could have been designed to reach 10,000km, putting parts of the US mainland within reach.