Trump made his remarks after the North Korea-focused 38 North website released recent satellite imagery that seems to show dismantlement underway at Sohae.
What did the report say?
"Major media reporting on what is alleged to be intelligence and photographic evidence that North Korea intends to deceive the United States in negotiations on denuclearization has been extraordinarily misleading", Porter wrotes.
The same facility is known to have produced the Hwasong-15, the country's first missile capable of reaching the US.
However, while USA intelligence agencies agree that the Kangson site is used to enrich uranium, not all European intelligence officials are so sure.
North Korea's leader Kim Jong Un waves before departing Pyongyang to Singapore on June 10, 2018.
Monday's report, citing intelligence gathered by USA spy agencies and unidentified officials, also said there were signs that North Korea is continuing to construct at least one, and possibly two, liquid-fueled intercontinental ballistic missiles (ICBMs) capable of reaching the United States.
"We see them going to work, just as before", said one USA official who spoke to The Post on the condition of anonymity.
Francesco Molinari wins British Open as Tiger Woods has impressive rally
Leaders are on the range at the British Open , where they will be greeted by warm breezes in the final round at Carnoustie. Rose is No. 3 and almost joined them until he made an 18-foot birdie putt on the last hole to make the cut on the number.
Reports last week suggested that a separate North Korean site used to develop missile engines was dismantling its facilities.
While the intelligence reported on Monday does not suggest an expansion of North Korea's capabilities it shows work on advanced weapons is still ongoing, the Washington Post said.
"We see them going to work, just as before", one official told the Post.
In a joint declaration after the Jun 12 summit, the North Korean leader "reaffirmed his commitment" to work towards the "denuclearisation of the Korean Peninsula".
"What's more, a liquid-fuelled ICBM doesn't pose nearly the threat that a solid-fuelled one would because they take so long to fuel, and that's something we almost certainly could see in time to abort a launch, given our assets in the vicinity". "Now it appears #NorthKorea is building NEW missiles", California Rep. Ted Lieu, a retired Air Force officer who sits on the House Foreign Relations Committee, posted on Twitter.
The Washington Post reported on Monday that United States intelligence agencies are seeing signs that work is under way on one or two liquid-fueled ICMBs at the Sanumdong research facility, according to officials who spoke on the condition of anonymity. "The nuclear program provides them with a deterrent in their mind against regime change by the United States". "Fissile Material" is uranium or plutonium that can be used to produce the nuclear fission reaction necessary for nuclear weapons.
On Tuesday, North and South Korea held their second round of military talks since June, when the first such meeting took place at the border village of Panmunjom in the demilitarized zone (DMZ), where the two sides pledged to halt "all hostile acts". What they're offering is: "They keep the bomb, but they stop talking about it".