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South Korea expresses concern over North's submarine missile test
Pyongyang's official KCNA news agency said on Saturday North Korea's leader, Kim Jong Un, oversaw the test-launch of the missile from an offshore location. Such a development could pose a new threat to the isolated country's neighbours and the United States.
"We urge North Korea to immediately stop developing SLBMs (submarine-launched ballistic missiles), which hinder the stability of the Korean peninsula and Northeast Asia," Kim Min-seok, spokesman for South Korea's defence ministry, told reporters on Monday.
He said North Korea still needed time to develop additional equipment in order to make its submarine-launched missile system fully operational.
North Korea's state media often boasts of successful military and space accomplishments, including the launch of a functional communications satellite, which are not independently verified by outside experts.
It is believed to have launched a long-range rocket and put an object into orbit in December 2012, defying scepticism and international warnings not to pursue such a programme, which could be used to develop intercontinental missiles.
(Reporting by Ju-min Park; Writing by Tony Munroe; Editing by Paul Tait)