North Korea has test-fired a new type of tactical guided weapon.
It is the secretive state’s first launch since a summit between leader Kim Jong Un and US President Donald Trump was cut short without agreement.
Announcing the test, the country’s state media did not say whether the weapon was a missile – but claimed it had a "peculiar mode of guiding flight" and "a powerful warhead."
It quoted Mr Kim as having "very weighty significance."
Analysts have suggested the launch may be an attempt to make a statement to the Trump administration over the failed talks.
There has reportedly been little contact between the two sides since the last summit in Hanoi, Vietnam.
Mr Kim was quoted as saying: "The development of the weapon system serves as an event of very weighty significance in increasing the combat power" of the North Korean army.
It was the first known time that Mr Kim witnessed the testing of a newly-developed weapon system since last November, when reports said he observed the successful test of an unspecified "newly developed ultramodern tactical weapon."
The latest announcement came after reports of new activity at a site where the North was believed to build long-range missiles.
Last April, Mr Kim said his country would not launch any more long-range intercontinental missiles and stop nuclear tests as Pyongyang's nuclear capabilities had been "verified."
The latest launch comes after he visited the North Korean air force on Tuesday, inspecting a military drill and expressing "great satisfaction" at their combat readiness.
The White House said it was aware of the launch report and had no comment.