US President Donald Trump said on Friday that a date and venue for his landmark summit with North Korea's Kim Jong Un would be unveiled soon, as he left open the prospect of future US troop reductions in the South.
"We now have a date and we have a location, we'll be announcing it soon," Trump told reporters as he left the White House on a trip to Texas.
Trump pushed back at suggestions he was envisaging a drawdown of troops in South Korea as part of negotiations with Kim's regime in the North -- but he admitted it was a possibility in the longer term.
"Not really, not at this moment. Certainly not," Trump said when asked if troop reductions were on the table.
"We haven't been asked it," he said. 
"I think a lot of great things will happen. But troops are not on the table. Absolutely."
The US president added, however: "Now I have to tell you, at some point into the future, I would like to save the money. You know, we have 32,000 troops there." 
US National Security Adviser John Bolton earlier denied as "utter nonsense" a New York Times report saying Trump had asked the Pentagon for options to prepare for drawing down the 28,500-strong US force.
The Times report, which cited several unidentified officials briefed on the deliberations, said reduced troop levels were not intended to be a bargaining chip in Trump's upcoming summit with Kim.
But officials acknowledged that a peace treaty between the two Koreas could diminish the need for the US forces, the Times said.
Trump, who has hinted at imminent news about three Americans detained in North Korea, once more sounded an upbeat note regarding their fate.
"We're having very substantive talks with North Korea and a lot of things have already happened with respect to the hostages," he said.
"As I said yesterday, stay tuned," Trump added. "I think you will be seeing very, very good things."
The United States has been demanding the North free Kim Hak-song, Kim Sang-duk and Kim Dong-chul and reports have said the two sides were close to reaching a deal on their release.
Plans for a historic summit meeting between Trump and Kim follow months of tense sabre-rattling over Pyongyang's testing of atomic weapons and long-range missiles, including some theoretically capable of reaching the US mainland.
But a spectacular detente in recent months has fed hopes of a historic turning point in the region.
Seoul and Pyongyang have remained technically at war since the 1950s but South Korean President Moon Jae-in and North Korean leader Kim agreed at a landmark summit last week to work towards a permanent treaty to replace a 65-year-old armistice.
Preparations for the Trump-Kim meeting have gathered further momentum since the Korean summit.
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