North Korea's Kim Jong Un was all smiles as he tried his hand at the popular "finger heart" gesture with officials from South Korea at the top of Mount Paektu, official photos showed.
South Korea's Presidential Blue House, which released the photos on Sunday, said the finger heart pose was suggested by Seoul's Foreign Minister Kang-Hwa.
Kim and South Korea's Moon Jae-in visited the spiritual birthplace of the Korean nation last Thursday for a show of unity after their summit, giving momentum to Pyongyang's talks with Washington.
The North Korean leader on Wednesday agreed to shutter the Tongchang-ri missile-testing site in the presence of international observers.
US President Donald Trump welcomed the move, tweeting that Kim had "agreed to allow nuclear inspections, subject to final negotiations," adding: "Very exciting!"