The National Geospatial-Intelligence Agency collected evidence of recent activity on a Hwasong-15 ICBM at a research facility in Sanumdong, North Korea.
Planet Labs also presented commercial satellite images of supply trucks and other vehicles going in and out of the missile facility, as well as photos of possible activity at a uranium-enrichment plant known as Kangson.
U.S. officials and private analysts believe the possible ICBM developments suggest that North Korean leader Kim Jong Un has not completely agreed to shutting down the nuclear program, despite President Trump announcing last week that the Asian nation started dismantling facilities at the Sohae Satellite Launching Station.
Secretary of State Mike Pompeo said during a Senate hearing last week that the federal government continues to coordinate with North Korea on disarmament efforts and that the process of denuclearization will take time.