Washington (CNN) A new satellite image obtained by CNN indicates North Korea may be preparing to resume testing engines used to power satellite launchers and intercontinental ballistic missiles at a site President Donald Trump previously claimed was dismantled after his Singapore summit with dictator Kim Jong Un, according to experts who analyzed the photo.

The commercial satellite imagery, which was captured on Thursday by Planet Labs, shows new activity at Sohae Satellite Launching Station and the presence of a large shipping container at the facility's engine test stand, according Jeffrey Lewis, director of the East Asia Nonproliferation Program at the Middlebury Institute, which works in partnership with the imaging company.

The shipping container was not seen at the site before Thursday and its presence suggests the North Koreans are moving to resume tests engine tests at Sohae, Lewis told CNN.

The Pentagon and CIA did not immediately offer comment when asked about analysis related to the image.

While engine tests are considered to be less provocative than those involving missiles or satellites, Lewis said that the activity at Sohae is a significant development and a step toward weapons launches of a more threatening nature.

Read More