In one set of images, it appears that a rail-mounted processing building is being dismantled. This building is where space launch vehicles are assembled before they are moved to the launchpad, according to 38 North analyst Joseph Bermudez.
Separately, images show activity around a vertical engine test stand at Sohae. Bermudez notes that in the images from July 22, the test stand appears to have been "completely dismantled," adding that "given the state of activity, work is likely to have begun sometime within the past two weeks."
On Twitter, 38 North's founder, Joel Wit, said the images suggested that North Korea may be willing to "give up its space launch programme."
Wit, a former State Department negotiator with North Korea and a consistent advocate for dialogue with Pyongyang, said such a move would be just one step in the right direction, "but an important one."
Notably, the timeline of the satellite images suggests that North Korea may have begun dismantling the facilities at Sohae after Secretary of State Mike Pompeo visited Pyongyang in early July in a bid to make progress on the agreement reached in Singapore.
However, the dismantlement of the facilities at Sohae appears to have taken place without outside experts there to verify it.
The North Korean Government has made a number of such unilateral moves since the start of the year, including the apparent destruction of the Punggye-ri nuclear test site in March. Analysts have cautioned that these steps need verification.
After a flurry of activity earlier in the year, there had been signs recently that ongoing denuclearisation talks between the United States and North Korea were going slower than anticipated. US intelligence officials said last month that Pyongyang was working to conceal key aspects of its nuclear programme.
The Washington Post reported last weekend that Trump, who had said last month that North Korea's nuclear problem was "largely solved," was now privately expressing concern about a lack of progress on the issue.
Today, Trump tweeted that the story was "wrong" and that he was "very happy!"