President Donald Trump meets with South Korean President Moon Jae-In in the Oval Office of the White House, Tuesday, May 22, 2018, in Washington. (AP Photo/Evan Vucci)
PHOTO: Evan Vucci/AP
President Donald Trump meets with South Korean President Moon Jae-In in the Oval Office of the White House, Tuesday, May 22, 2018, in Washington. (AP Photo/Evan Vucci)
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US Secretary of State Mike Pompeo (3rd L) shakes hands with North Korea's Foreign Minister Ri Yong Ho (3rd R) as they arrive for a group photo at the ASEAN Regional Forum Retreat during the 51st Association of Southeast Asian Nations (ASEAN) Ministerial Meeting (AMM) in Singapore on August 4, 2018. - Leaders, ministers and representatives are meeting in the city-state from August 1 to 4 for the ASEAN Ministerial Meeting (AMM). (Photo by Mohd RASFAN / AFP)        (Photo credit should read MOHD RASFAN/AFP/Getty Images)
PHOTO: MOHD RASFAN/AFP/AFP/Getty Images
US Secretary of State Mike Pompeo (3rd L) shakes hands with North Korea's Foreign Minister Ri Yong Ho (3rd R) as they arrive for a group photo at the ASEAN Regional Forum Retreat during the 51st Association of Southeast Asian Nations (ASEAN) Ministerial Meeting (AMM) in Singapore on August 4, 2018. - Leaders, ministers and representatives are meeting in the city-state from August 1 to 4 for the ASEAN Ministerial Meeting (AMM). (Photo by Mohd RASFAN / AFP) (Photo credit should read MOHD RASFAN/AFP/Getty Images)
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PHOTO: SAUL LOEB/AFP/AFP/Getty Images
TOPSHOT - US President Donald Trump (R) poses with North Korea's leader Kim Jong Un (L) at the start of their historic US-North Korea summit, at the Capella Hotel on Sentosa island in Singapore on June 12, 2018. - Donald Trump and Kim Jong Un have become on June 12 the first sitting US and North Korean leaders to meet, shake hands and negotiate to end a decades-old nuclear stand-off. (Photo by SAUL LOEB / AFP) (Photo credit should read SAUL LOEB/AFP/Getty Images)
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TOPSHOT - North Korea's leader Kim Jong Un (L) shakes hands with US President Donald Trump (R) after taking part in a signing ceremony at the end of their historic US-North Korea summit, at the Capella Hotel on Sentosa island in Singapore on June 12, 2018. - Donald Trump and Kim Jong Un became on June 12 the first sitting US and North Korean leaders to meet, shake hands and negotiate to end a decades-old nuclear stand-off. (Photo by Anthony WALLACE / POOL / AFP)        (Photo credit should read ANTHONY WALLACE/AFP/Getty Images)
PHOTO: ANTHONY WALLACE/AFP/AFP/Getty Images
TOPSHOT - North Korea's leader Kim Jong Un (L) shakes hands with US President Donald Trump (R) after taking part in a signing ceremony at the end of their historic US-North Korea summit, at the Capella Hotel on Sentosa island in Singapore on June 12, 2018. - Donald Trump and Kim Jong Un became on June 12 the first sitting US and North Korean leaders to meet, shake hands and negotiate to end a decades-old nuclear stand-off. (Photo by Anthony WALLACE / POOL / AFP) (Photo credit should read ANTHONY WALLACE/AFP/Getty Images)
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SINGAPORE, SINGAPORE - JUNE 12:  In this handout photograph provided by The Strait Times, North Korean leader Kim Jong-un (L) with U.S. President Donald Trump (R) during their historic U.S.-DPRK summit at the Capella Hotel on Sentosa island on June 12, 2018 in Singapore. U.S. President Trump and North Korean leader Kim Jong-un held the historic meeting between leaders of both countries on Tuesday morning in Singapore, carrying hopes to end decades of hostility and the threat of North Korea's nuclear programme. (Photo by Kevin Lim/The Strait Times/Handout/Getty Images)
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PHOTO: Handout/Getty Images AsiaPac/Getty Images
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U.S. Secretary of State Mike Pompeo, left, speaks during a meeting with North Korean Director of the United Front Department Kim Yong Chol at the Park Hwa Guest House in Pyongyang, North Korea, Friday, July 6, 2018. Pompeo is on a trip traveling to North Korea, Japan, Vietnam, Abu Dhabi, and Brussels. (AP Photo/Andrew Harnik, Pool)
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U.S. Secretary of State Mike Pompeo, second from right, greets Kim Yong Chol, second from left, a North Korean senior ruling party official and former intelligence chief, as they arrive for a meeting at the Park Hwa Guest House in Pyongyang, North Korea, Friday, July 6, 2018. Pompeo is on a trip traveling to North Korea, Japan, Vietnam, Abu Dhabi, and Brussels. Also pictured is Andrew Kim, the head of the CIA's Korea Mission Center, right. (AP Photo/Andrew Harnik, Pool)
PHOTO: Andrew Harnik/AP
U.S. Secretary of State Mike Pompeo, second from right, greets Kim Yong Chol, second from left, a North Korean senior ruling party official and former intelligence chief, as they arrive for a meeting at the Park Hwa Guest House in Pyongyang, North Korea, Friday, July 6, 2018. Pompeo is on a trip traveling to North Korea, Japan, Vietnam, Abu Dhabi, and Brussels. Also pictured is Andrew Kim, the head of the CIA's Korea Mission Center, right. (AP Photo/Andrew Harnik, Pool)
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(CNN) —  

President Donald Trump said on Wednesday that further clarity about his upcoming summit with Kim Jong Un would come next week.

“We will know next week about Singapore,” he told reporters at the White House before departing for New York.

Trump is due to meet the North Korean dictator on June 12 in the Southeast Asian city-state. But he cast doubts this week that preparations for the historic encounter would be ready by then.

Instead, Trump suggested in the Oval Office on Tuesday that the meeting could be delayed.

A day later, he appeared slightly more confident.

“Someday a date will happen. It could very well be June 12. Someday, a date will absolutely happen,” he said before boarding his Marine One helicopter.

Earlier Wednesday, Secretary of State Mike Pompeo told lawmakers the talks were “still scheduled for June 12.”

Top White House officials will travel to Singapore this weekend to confer with a North Korean delegation on logistical and agenda items for the summit, a person familiar with the plans confirms.

The officials include deputy chief of staff for operations Joe Hagin and deputy national security adviser Mira Ricardel. Hagin is the White House’s top logistics official, overseeing advance and scheduling teams. Ricardel was appointed by John Bolton and assumed her post in late April.

The trip was first reported by The Washington Post.