Trump’s announcement came hours after North Korea carried out what it said is the demolition of its nuclear test site.

WASHINGTON(TIP): US President Donald Trump on Thursday, May 24, called off a historic summit with North Korean leader Kim Jong Un scheduled for next month, even after North Korea followed through on a pledge to blow up tunnels at its nuclear test site.

Trump announced his abrupt withdrawal from what would have been a first-ever meeting between a serving US President and a North Korean leader in Singapore on June 12 in a letter to Kim.

A White House official said a North Korean official’s condemnation of US Vice-President Mike Pence as a “political dummy” was “the last straw” that led to cancelling the summit.

“Sadly, based on the tremendous anger and open hostility displayed in your most recent statement, I feel it would be inappropriate, at this time, to have this long-planned meeting,” Trump wrote to Kim.

“Please let this letter serve to represent that the Singapore summit, for the good of both parties, but to the detriment of the world, will not take place.” Trump called it “a missed opportunity” and said he still hoped to meet Kim someday. However, the chances for a quick rescheduling appear remote and cancellation of the summit will renew fears of a return to conflict on the Korean peninsula.

Earlier on Thursday, North Korea had repeated a threat to pull out of the summit with Trump next month and warned it was prepared for a nuclear showdown with Washington if necessary.

South Korea’s presidential Blue House appeared taken off guard by Trump’s letter and an official said it was “trying to figure out what President Trump exactly meant.” South Korean President Moon Jae-in had met with Trump at the White House on Tuesday, May 22, to urge him to follow through on the summit and not let a rare opportunity with reclusive North Korea slip away.

A few hours before Trump announced the cancellation, a small group of international media selected by North Korea witnessed the demolition of tunnels at the Punggye-ri site on Thursday, May 24, which Pyongyang said was proof of its commitment to end nuclear testing.

Meanwhile, alarm bells began to ring at the world body. Antonio Guterres, UN Secretary-General said, “I am deeply concerned by the cancellation of the planned meeting in Singapore between the President of the United States and the leader of the Democratic People’s Republic of Korea. Both the parties must continue their dialogue so as to find a path to the peaceful and verifiable denuclearization of the Korean peninsula”.