President Donald Trump said that US diplomats had a "very productive meeting" with North Korean officials, and he announced his summit later this month with North Korean leader Kim Jong Un would be held in Vietnam's capital, Hanoi.
"My representatives have just left North Korea after a very productive meeting and an agreed upon time and date for the second Summit with Kim Jong Un. It will take place in Hanoi, Vietnam, on February 27 & 28," Trump said on Twitter.
"I look forward to seeing Chairman Kim & advancing the cause of peace!" he said.
Earlier this week, Trump announced the dates for the second summit with Kim and said it would be held in Vietnam, but the city had not been disclosed.
Stephen Biegun, the US special representative for North Korea, held three days of talks in Pyongyang to prepare for the summit, the State Department said on Friday.
It said Biegun had agreed with his counterpart Kim Hyok Chol to meet again ahead of the summit.
In their talks in Pyongyang, from Wednesday to Friday, Biegun and Kim Hyok Chol "discussed advancing President Trump and Chairman Kim's Singapore summit commitments of complete denuclearization, transforming US-DPRK relations, and building a lasting peace on the Korean Peninsula," the State Department said.
Its statement gave no indication of any progress in the talks.