Hours after President Donald Trump delivered a stark personal message to North Korea's supreme leader Kim Jong Un, the reclusive country slammed his intentions of visiting South Korea. On Wednesday, Pyongyang said Trump's comments and move are igniting the risk of a nuclear war in the Korean Peninsula. 

"Trump has flown to South Korea as he seeks to strengthen military threats against us and has an intention to light the fuse for a nuclear war," the Rodong Sinmun, North Korea's main newspaper, said in a commentary. "The problem is that South Korea is blindly following the U.S. which is intent on the scheme for a nuclear war." 

Trump arrived in Seoul on Tuesday for a two-day visit as part of his 12-day trip to five Asian nations including China, Vietnam, and the Philippines.

Trump said before the South Korean National Assembly on Tuesday that Kim's “rogue” regime must not test the United States and its allies. Picking a softer tone, Trump directly addressed Kim saying: “The weapons that you are acquiring are not making you safer, they are putting your regime in grave danger,” adding, “Every step you take down this dark path increases the peril you face.”

He said that “despite every crime you have committed against God and man,” the U.S. is ready to resolve the crisis diplomatically.

“We will offer a path to a much better future,” he further said. “It begins with an end to the aggression of your regime, a stop to your development of ballistic missiles and complete verifiable and total denuclearisation.”

Later, using harsh tone, Trump warned the regime saying: “Do not underestimate us. Do not try us,” adding that the U.S. would not tolerate threats to American cities and that the U.S. “would not be intimidated.”

“North Korea is not the paradise your grandfather envisioned, it is a hell that no person deserves,” Trump said. 

North Korea's ongoing nuclear program and testing of several long-range missiles have increased tensions in the Korean Peninsula. However, Kim's regime refrained from any provocation for more than 50 days since its testing of an intermediate-range missile over Japan in September. 

According to reports, Pyongyang is seeking to complete the development of a nuclear-tipped intercontinental ballistic missile capable of reaching the U.S. mainland. 

Trump and Kim have exchanged increasingly heated threats in recent months after the president promised “fire and fury” like the world has never seen should the nuclear threat continue. Trump also called the North Korean leader a “rocket man.” 

Early Tuesday, North Korea vowed to strengthen its nuclear arsenal if "the U.S. and its followers continue their hostile acts against us."

Last week, North Korea criticized Trump, calling him “incurably mentally deranged.”

“[Trump] disclosed his true nature as a nuclear war maniac before the world and was diagnosed as ‘incurably mentally deranged,’” North Korean Central News Agency (KCNA) said. “He absolutely needs medicine for curing his psychical disorder.”