Referring to the test, a White House official said: "We are aware of the report and have no further comment".
Ambassador of the Permanent Mission of the Democratic People's Republic of Korea to the United Nations Jang Il Hun, right, is joined by councilor Kwon Jong Gun as he speaks during a new conference, July 28, 2015, at the DPRK mission in NY. South Korea also has similar missiles, called the "Hyunmoo-3", at its disposal.
In an address to the Supreme People's Assembly, the North's version of parliament, Kim gave the US until the end of the year to come up with a more mutually acceptable negotiation strategy.
Confirmation of the visit follows speculation that Kim would soon reach out to a long-time ally after failing to get sanctions relief during his last nuclear talks with U.S. President Donald Trump in February.
Instead, the North has carried out smaller provocations.
The initial United States intelligence assessment is North Korea tested components for an anti-tank weapon, rather than a fully operational new weapon, the official told CNN on Thursday. Another possible clue: one of the lower level officials mentioned in the North's report on the test - Pak Jong Chon - is known as an artillery official.
North Korea's leader Kim Jong Un (C) gestures as he meets with US President Donald Trump (R) at the start of their historic US-North Korea summit, at the Capella Hotel on Sentosa island in Singapore on June 12, 2018.
North Korea’s leader Kim Jong Un shakes hands with US Secretary of State Mike Pompeo in Pyongyang North Korea in July 2018. Korean Central News Agency
Kim came to power in 2011 following the death of his father, Kim Jong-il, who had visited Russian Federation for a summit with then President Dmitry Medvedev earlier that year. Kim has only offered limited steps toward denuclearization.
The visit comes after Kim gave a lengthy speech in which he said he would give the U.S.to the end of this year to come up with new proposals for future talks.
FILE PHOTO: U.S. Secretary of State Mike Pompeo attends a news conference at a warehouse where global humanitarian aid for Venezuela is being stored, near La Unidad cross-border bridge between Colombia and Venezuela in Cucuta, Colombia April 14, 2019.
"This looks like a new form of cruise missile", he said.
It was not immediately clear what type of weapon the North Koreans fired, but experts said the description of a tactical weapon, with guided flight, capable of carrying a powerful warhead and fired at a variety of targets, suggested a short-range missile rather a longer-range ballistic missile, meaning the move would not violate North Korea's self-declared moratorium on testing.
"I am convinced we will have a real opportunity to achieve that outcome", Pompeo said at a joint news conference after talks with Japan's foreign and defence ministers. "We will continue to enforce all sanctions on North Korea and encourage every country to do so".