A new North Korean missile test failed on Wednesday, the South and US said, two weeks after Pyongyang launched four rockets in what it called a drill for an attack on American bases in Japan.
The nuclear-armed North is under several sets of United Nations sanctions over its atomic and ballistic missile programmes.
It is on a quest to develop a long-range missile capable of hitting the US mainland with an atomic warhead, and staged two nuclear tests and multiple missile launches last year.
The North fired one missile from an air base in the eastern port of Wonsan Wednesday morning, but the launch "is believed to have failed", Seoul's defence ministry said in a statement, adding it was analysing what type of missile was involved.
The US military said the missile exploded shortly after launch.
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