According to the Joint Chiefs of Staff (JCS), it detected the North's launch at around 11 am from its west coast
"While strengthening our monitoring and vigilance, our military has been closely coordinating with the United States to monitor additional signs of North Korea's provocations," the JCS said in a text message sent to reporters
The latest missile launch comes just three days after the North conducted a test of the Hwasal-2 strategic cruise missile off the west coast
Earlier, on January 24, North Korea said that it had test-fired an unspecified number of Pulhwasal-3-31 cruise missiles from its west coast for the first time
The North fired submarine-launched cruise missiles on Sunday over the East Sea and later said that they were Pulhwasal-3-31s, Yonhap News Agency reported
These cruise missiles are powered by jet engines; enabling them to fly low and manoeuvre, which makes them harder to detect and intercept
In the Korean language, Hwasal means an 'arrow' and Pulhwasal means a 'fire arrow'
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