US Secretary of State Mike Pompeo arrived in Pyongyang to prepare for historic talks between North Korean leader Kim Jong-Un and President Donald Trump.
Mr Pompeo said he hopes to complete the plans for talks on denuclearization of the Korean Peninsula
The surprise visit came as a result of growing speculation about the possible release of three US prisoners.
It's his second trip to Pyongyang following a meeting with Mr. Kim last month.
Mr Pompeo said that a "good relationship" was formed at the April meeting, which marked the US's highest contact with North Korea since the year 2000
Prior to his recent visit to Pyongyang, Mr. Pompeo said he hoped North Korea will "do the right thing" and release three imprisoned Americans.
"We have been demanding the release of these prisoners for 1
A South Korean presidential spokesman told Yonhap news agency that Pyongyang should release US citizens as a "gesture of goodwill." in the run-up to the summit between Mr Kim and Mr Trump.
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A US State Department official traveling with Pompeo said the US would "listen to signs from North Korea that things have changed significantly" The country's nuclear ambitions.
Mr. Trump also referred to Pompeo's recent visit when he announced that the US would withdraw from an atomic bomb deal with Iran.
"We think that relations with North Korea are developing," said the president.
Mr. Trump said to his upcoming meeting with Mr. Kim, "We have our The place is selected, the time and the date, everything is selected."
He added, "We'll see how it all works. Maybe it will not, but it can be a great thing for North Korea, South Korea and the whole world. "
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In April, Trump surprised the international community by accepting Pyongyang's proposal for direct talks – it will be an unprecedented move for a seated US president to become a North Korean leader
He said the summit would be either in early June or early June Little would take place before that "and that several sites would be considered but that none of them was in the US. On Tuesday, an earlier acknowledgment followed that Mr. Kim had made a second trip to China to preside over President Xi Jinping ahead of the summit with the US President, the second meeting of the leaders of Pyongyang and Beijing in six weeks , hold true.
The Chinese media quoted Mr. Kim as saying he hoped "stepped and synchronized" measures would be taken to bring about denuclearization on the Korean Peninsula.