North Korea has test-fired a ballistic missile, according to the South Korean and US

military, defying pressure from the US and the North’s main ally, China.

US and South Korean officials said Saturday’s test, from an area north of the North Korean capital Pyongyang, appeared to have failed, in what would be a fourth successive unsuccessful missile test since March.

The test came as Rex Tillerson, US secretary of state, gave warning that the UN Security Council that failure to curb North Korea’s nuclear and ballistic missile programmes could lead to “catastrophic consequences”.

US officials, speaking on condition of anonymity, told Reuters the missile was probably a medium-range weapon known as a KN-17 and appeared to have broken up within minutes of taking off.

South Korea’s military said the missile, fired from the Pukchang region in a northeasterly direction, reached an altitude of 71km before disintegrating a few minutes into flight.

Al Jazeera’s Wayne Hay, reporting from Seoul, said: “The failed test launch was inland … possibly it could mean that this was not necessarily new technology and not necessarily a new type of missile that they were testing. Perhaps something they have tested before.

“Obviously, if it is inland, it is going to be launched over potentially populated areas, so there is a certain amount of confidence there, that it is not going to fail, that it is going to fly over those populated areas out to sea before it crashes. It is also possibly a clue that this was a medium-range missile.”

Shinzo Abe, Japan’s prime minister, said in London on Saturday that North Korea’s decision to test-fire a