WASHINGTON (Kyodo) -- U.S. President Donald Trump said Friday he expects to receive a "positive letter" from North Korean leader Kim Jong Un soon.
"I know that a letter is being delivered to me, a personal letter from Kim Jong Un to me, that was handed at the border," Trump told reporters aboard Air Force One en route to North Dakota. "I don't know if you know that. It was handed at the border yesterday."
"I think it's going to be a positive letter," he said, according to a pool report.
The letter is likely to be delivered by U.S. Secretary of State Mike Pompeo, Trump said.
Trump made the remarks a day after thanking Kim on Twitter for expressing "unwavering faith in President Trump." He also tweeted, "We will get it done together!"
In a meeting Wednesday with a South Korean presidential delegation in Pyongyang, Kim reportedly said his faith in Trump remains unchanged and that he wishes denuclearization of the Korean Peninsula to take place before Trump's first term ends in January 2021.
It was the first time that Kim has given a timeline for denuclearization.
Kim committed to "complete" denuclearization during a historic meeting with Trump in June in Singapore.
However, negotiations have stalled as the United States pushes North Korea to make a full account of its nuclear program as a step toward denuclearization.
Pyongyang demands that Washington and other parties first join it in declaring an end to the Korean War, which halted with an armistice, not a peace treaty.