North Korea claimed to have conducted a "long-term" attack trial

North Korea said Thursday it tested a long-range weapon, an announcement that contradicts the claims of South Korea, Japan and the United States, which advocated short-range missiles and would likely increase tension in the peninsula.

The North Korean state press agency KCNA announced that Kim Jong-un had supervised the weapons test on Thursday, the second in less than a week. The test comes in a context of tension and stagnation in the dialogue with the United States, which calls on the communist regime to abandon its nuclear arsenal in exchange for sanctions relief.

"At the command post, Supreme Leader Kim Jong-un was informed of a trial plan […] several means of long-range attack and gave the order to carry out the exercise, "said KCNA, ensuring that the test was a success.

The agency did not specify the type of weapon that had been fired and avoided using the words "missile", "rocket" or "projectile".

This new information adds to growing tensions with the United States, where President Donald Trump estimated Thursday that Kim I was not ready to negotiate a denuclearization.

From the White House, Trump said he was watching the launch of the missile "very seriously." "It was smaller missiles, short-range missiles. Nobody is happy with that"the president told reporters.

"The relationship continues, but we will see what happens," he said. North Korea has banned by the UN to try any type of ballistic missile or badociated technology.

At the historic Trump summit in June 2018 in Singapore, the North Korean leader pledged to "work for the complete denuclearization of the Korean peninsula". But a second meeting in Hanoi ended in failure.

Then Kim unsuccessfully asked that the sanctions imposed on his country be lifted, in exchange for a denuclearization deemed too timid by the US president.

Thursday's launch also comes days after North Korea conducted a military exercise and launched several projectiles on Saturday, including a short-range missile, experts say.

Thursday throws only took place hours after the arrival of the US special envoy for North Korea, Stephen Biegun, in Seoul speak with representatives of South Korea on the approach to adopt in nuclear negotiations with Pyongyang.

South Korean President Moon Jae-in said Pyongyang was "very upset" by the fact that the Vietnamese summit ended without agreement and that its last position included an "element of protest" and "pressure for to reorientate nuclear negotiations in your way. "

But he said: "Whatever the intentions of North Korea, we warned that this could make negotiations more difficult."