U.S. weapons experts say they believe North Korea may be preparing to test a new strategic weapon system that would vastly expand Kim Jong Un’s arsenal and defy President Donald Trump’s threshold requirements for continued engagement with the U.S.

The experts, led by Dr. Victor Cha of the Center for Strategic and International Studies “Beyond Parallel” website, have posted new and unusually clear satellite images taken Friday that show North Korea may be preparing its first submarine-launched ballistic missile test, potentially a major new development for the North.

The experts say the pictures show a submersible test stand barge at the Sinpo South Shipyard.

The two ROMEO-class submarines (SS) anchored within the bay of the Mayang-do Submarine Base as of Sept. 4, 2020.Airbus