North Korea has reportedly launched three short range ballistic missiles into the sea off the country's eastern coast.
According to the South Korean military the projectiles were fired from within North Korea's Kangwon province and flew for about 155 miles before landing in the sea on Saturday.
U.S. military officials described the firing of the missiles as a "failed" launch with the U.S. Pacific Command stating that two of the missiles failed in flight and another appeared to have blown up immediately.
Seoul's Joint Chiefs of Staff said the South Korean and U.S. military were analysing the launch.
It is the first known launches by Pyongyang since July when the north successfully tested a pair of intercontinental ballistic missiles that analysts say could reach the U.S. mainland.
The launch comes just weeks after North Korea entered a tense standoff with the United States after declaring the nation was in the process of finalising a plan for striking waters close to Guam with mid-range missiles by mid-August.
U.S. Pacific Command have made reassurances that this latest missile launch posed no threat to Guam.
The state's previous threats against the US island territory had sparked anger from President Donald Trump.