North Korea is ready to hold talks with the United States in late September, a senior diplomat said Monday, indicating that stalled denuclearization talks between the two nations may move forward.

Pyongyang is willing to discuss "comprehensive" issues with the United States, First Vice Foreign Minister Choe Son Hui said in a statement carried by the state-run Korean Central News Agency, adding the time and place will be "agreed" later.

Choe, regarded as a close aide to North Korean leader Kim Jong Un, said, "I believe that the U.S. side will come out with a proposal geared to the interests of the DPRK and the U.S. and based on the calculation method acceptable to us."

DPRK is the acronym for North Korea's official name, the Democratic People's Republic of Korea.

"If the U.S. side fingers again the worn-out scenario which has nothing to do with the new calculation method at the DPRK-U.S. working negotiation to be held with so much effort, the DPRK-U.S. dealings may come to an end," she added.

At their June 30 meeting in the inter-Korean truce village of Panmunjeom, Kim agreed with U.S. President Donald Trump that the two countries would resume stalled negotiations within weeks, but such talks have yet to be held.

Instead, North Korea has continued to test its weapons technology in recent months. Late last month, it fired two projectiles believed to be short-range ballistic missiles into the Sea of Japan -- Pyongyang's seventh round of launches since late July.

At their Feb. 27-28 summit in the Vietnamese capital Hanoi, Kim and Trump fell short of bridging the gap between Washington's denuclearization demands and Pyongyang's calls for sanctions relief.

In a speech to the nation's legislature in April, Kim asked the United States to shift its policy on denuclearization negotiations by the end of this year, lambasting Washington for making what he claimed are one-sided demands.

U.S. Secretary of State Mike Pompeo said earlier this week, "We are hopeful that in the coming days or perhaps weeks we'll be back at the negotiating table with them. That's the best outcome."

Technically, Washington and Pyongyang remain in a state of war as the 1950-1953 Korean War ended in a cease-fire. The two countries have no diplomatic relations.