Seoul has also repeatedly indicated that there have been no unusual signs that could indicate health problems for Kim
An official familiar with US intelligence said that Kim was known to have health problems but they had no reason to conclude he was seriously ill
On Tuesday, Trump had wished Kim well after reports of his poor health surfaced
Speculation about Kim's health was raised after he missed the celebration of his late grandfather and state founder Kim Il Sung on April 15
"The test-firing was successfully carried out," Yonhap said on Monday, quoting the North Korean Rodong Sinmun newspaper
Earlier this month, Kim Jong Un sent a letter to South Korean President Moon Jae-in offering "comfort" as Seoul battled with worst coronavirus outbreak outside China at the time.
The Korean Central News Agency said Kim guided an artillery firing competition between army units on Thursday
South Korea said that launch appeared to be two short-range ballistic missiles
Britain, Germany, France, Estonia and Belgium raised North Korea's latest missile firings at the UN Security Council on Thursday
South Korea had said that North Korea fired what appeared to be two short-range ballistic missiles on Monday
The projectiles were fired from areas near its eastern coastal city of Wonsan towards the northeast at 12.37 p.m.
While Kim could personally like Trump, he would not lead his country on the basis of personal feelings, said a Korean official
Talks on denuclearising the Korean peninsula have been largely deadlocked since the second summit between Kim and US President Donald Trump collapsed in Hanoi at the start of this year
North Korean leader Kim Jong Un has promised the unidentified "gift" -- which could be a missile test -- if the US does not make concessions in nuclear talks by the end of the year.
"The idea that we are somehow exerting maximum pressure on North Korea is just unfortunately not true," he said
The Korean Central News Agency said Kim presided over a meeting of the Central Military Commission of the Workers' Party. It didn't say when it took place.
The draft resolution circulated to UN SC members would terminate sanctions on North Korean exports including textiles, seafood and statues with the intent of enhancing the livelihood of the population
China and Russia made the proposals 16 days before Kim's end-of-December deadline for the US to come up with new proposals to revive nuclear diplomacy
The result of the latest test will have an 'important effect' on changing the 'strategic status' of North Korea
Kim has said North Korea will seek a new way if the US maintains its sanctions and pressure, and issued the deadline for the Trump administration to offer mutually acceptable terms for a deal.