South Korean military initally reported it as an unidentified projectile and said it travelled around 155miles (250km).
A later statement from Seoul said North Korea had fired several short-range projectiles into the sea, with Japanese officials believing they may have been ballistic missiles.
Kim Jong-un’s latest show of strength was immediately reported to South Korean President Moon Jae-in amid World War 3 fears.
The South Korea’s Joint Chiefs of Staff said the “unidentified projectile” was fired from a site in North Korea’s eastern province of Gangwon.
The launch comes ahead of a meeting between the vice foreign ministers of South Korea and the US next week over the threat of Kim Jong-un’s regime.
Earlier this month, the rogue state had announced it plans to fire an intercontinental ballistic missile (ICBM) towards the US territory Guam following Donald Trump’s promise to retaliate with “fire and fury” in a Twitter outburst.
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