"They [searched] my bags and then told me that this is a very sensitive time to be in Singapore and that I should stay away from the Sentosa Island as well as the Shangri-La hotel in town", he said in a Facebook post.
"I don't think it will be one meeting, " Trump said.
President Trump holds new conference with Japanese Prime Minister Abe from the Rose Garden at the White House.
"We said we're not going to have a summit under those circumstances", Giuliani, the former mayor of NY, told a business conference in Tel Aviv, Israel.
"They have to de-nuke", Trump said of North Korea.
"He would look at it very favourably so that could happen", the USA president said at a joint press conference with Japanese prime minister Shinzo Abe. Can you imagine asking the president what is actually in either the Iran nuclear deal or the Affordable Care Act?
Bolton and Pompeo have said for years that it is intolerable for North Korea to possess nuclear weapons that can be launched at the US homeland but, truth be told, there likely is no viable plan short of war for obtaining complete denuclearization. I think they've been preparing for a long time also. "I think it's not a one-meeting deal. It would be wonderful if it were".
Pompeo said Trump will reject anything short of "complete, verifiable and irreversible denuclearization of the Korean Peninsula".More news: Chelsea star Willian rates new Man Utd signing Fred
Speaking at the White House alongside Shinzo Abe, the Japanese prime minister, he said: "It's about the attitude".
Stella Choi, the principal of a Korean language school in a drab tower in downtown Singapore, works just across the elevator lobby from the modest suites that make up North Korea's embassy.
He clearly outlined what would need to happen for the summit to be a success: tangible progress on curbing the North's nuclear arms and ballistic missile programs, as well as answers about Japanese nationals kidnapped by Pyongyang in the 1970s and 1980s. "To the Warmbier family, our love and our success", Trump said, adding he is grateful to North Korean officials for the recent release of three American hostages.
Rodman has previously claimed he was partly responsible for easing the tension between Trump and the Kim regime. North Korea's state newspaper Rodong Sinmun accused Bolton of "simple thinking, racism and the narrow-minded America First policy" and described him personally as "sinister" and "absurd".
The President's positive comments come a day after his personal lawyer Rudi Giuliani told a conference in Israel that Mr Kim "got on his hands and knees and begged" for the summit to go ahead in a letter last week. North Korea has not made public any list of individuals in their delegation to Singapore. "And we can not take sanctions off".
The Japanese leader said he too was willing to have full relations with North Korea, but not before key demands were met.
Trump earlier expressed confidence that he is ready for the summit.
USA allies in the region have expressed concern that Trump's push to denuclearize the Korean peninsula could ignore the North's sophisticated ballistic missile and chemical weapons programs. But Mr. Giuliani called The Wall Street Journal afterward to say he only knew what had been in news reports.