North Korea has made "dramatic progress" in upgrading and modernizing its Sohae satellite launching station, according to a U.S. think tank, a move that will potentially aid the nuclear-armed state in developing intercontinental ballistic missiles.
Commercial satellite imagery analyzed by Beyond Parallel, a North Korea-focused project of the Center for Strategic and International Studies, shows that major construction activity in the eastern half of the site has taken place over the past two months.
North Korean leader Kim Jong Un visited the station in March and called for modernizing and expanding the facility to handle bigger rocket launches.
In addition to renovation work on and around the launch pad, construction of new buildings, roads and a large underground facility or tunnel is underway.