WASHINGTON, July 12 - RIA Novosti. DPRK leader Kim Jong-un wrote to US President Donald Trump a letter in which he highly appreciated the implementation of the agreements reached at their meeting in Singapore.

The President of the United States published a letter on Twitter.

The DPRK leader also noted in his letter that he appreciates the "energetic and unprecedented efforts" that Trump is undertaking to improve relations between the two countries.

In addition, Kim Jong-un expressed the hope that the general extraordinary efforts of the administrations of the United States and North Korea will lead to a new meeting of the two leaders. The North Korean leader also added that joint efforts will open new prospects for the two countries and will be fruitful.

The first summit in the history of the United States and North Korea, at which US President Donald Trump met and North Korean leader Kim Jong-un, was held June 12 in Singapore. Following the meeting, Trump said he had signed a "detailed" document with the DPRK, and stressed that the process of denuclearization of the Korean peninsula would begin "very quickly." Later, the United States and North Korea agreed to set up working groups to check the course of the denuclearization of the Korean peninsula.