A senior official of the Democratic People's Republic of Korea is heading to New York to discuss the upcoming summit between DPRK and the United States next month, US President Donald Trump said on Tuesday.

"We have put a great team together for our talks with North Korea," Trump said in a Twitter post. "Meetings are currently taking place concerning Summit, and more. Kim Young Chol, the Vice Chairman of North Korea, heading now to New York. Solid response to my letter, thank you!"

The message further indicated that the on-again, off-again meeting between and DPRK's top leader Kim Jong-un has shifted back to the "on" mode. On Sunday Trump confirmed an official US team had been dispatched to the DPRK to prepare for the historic summit scheduled for June 12.

White House Press Secretary Sarah Sanders said on Tuesday that Kim Yong-chol, ?vice-chairman of the ruling Workers' Party of Korea Central Committee, is traveling to New York and will meet with US Secretary of State Mike Pompeo later this week.

"The United States continues to actively prepare for President Trump's expected summit with leader Kim in Singapore," she said on Tuesday.