“I am willing to send a delegation and take necessary measures, and I believe that the authorities of the North and South can urgently meet to discuss the matter,” Mr. Kim said in his annual New Year’s Day speech, broadcast on North Korea’s state-run television. “We sincerely hope that the South will successfully host the Olympics.”

“Above all, we must ease the acute military tensions between the North and the South,” Mr. Kim said. “The North and the South should no longer do anything that would aggravate the situation, and must exert efforts to ease military tensions and create a peaceful environment.”

But Mr. Kim also reiterated his country’s achievements with its nuclear weapons program.