(CNN) -- North Korea has threatened to abandon planned talks between leader Kim Jong Un and US President Donald Trump in June if Washington insists on pushing it "into a corner" on nuclear disarmament.
A statement published by the state-run Korea Central News Agency (KCNA) said North Korea would never accept economic assistance from the US in exchange for unilaterally abandoning its nuclear program.
Kim Kye Gwan, North Korea's First Vice Minister of the Ministry of Foreign Affairs, was quoted in the article as saying the US said "it would offer economic compensation and benefit in case we abandon (nuclear weapons)."
"We have never had any expectation of US support in carrying out our economic construction and will not... make such a deal in future," he added.
If the Trump administration was "genuinely committed" to improving ties with Pyongyang, "they will receive a deserving response," Kim Kye Gwan said. "But if they try to push us into a corner and force only unilateral nuclear abandonment, we will no longer be interested in that kind of talks and will have to reconsider ... the upcoming summit."
Pyongyang's rhetoric is similar to Trump's own: he said in April that even once parties are at the negotiating table, if talks aren't going the right way, "I will respectfully leave the meeting."
South Korean Foreign Minister Kang Kyung-hwa spoke with US Secretary of State Mike Pompeo early Wednesday morning Seoul time, according to a statement, which quoted Pompeo as saying preparations would continue for the Trump-Kim summit, "keeping in mind this action of the North."
"Minister Kang and Secretary Pompeo agreed to continue close cooperation between South Korea and the United States to achieve a complete denuclearization and peace settlement on the Korean Peninsula," the South Korean statement said.
Adam Mount, a Korea expert at the Federation of American Scientists, said Pyongyang was seeking "to revise the terms of negotiations, not to end them altogether."
"The United States is faced with a critical choice: will it pursue a deal with North Korea that improves US and allied security but falls short of immediate denuclearization? Or will it walk away with nothing?" he added.