On, Friday, the Korean Central News Agency made public the photos of apparently new Pukguksong-5 submarine-launched ballistic missiles (SLBM) that were displayed during a military parade.

According to CNN, The display comes just days after Kim said North Korea was manufacturing sophisticated new armaments for the country’s nuclear weapons and ballistic missile programs, which also included a nuclear-powered submarine, tactical nuclear weapons, and advanced warheads specially designed to penetrate missile defense systems.

According to analysts, this new version of SLBM could be a potential upgrade from the Pukguksong-4 that was unveiled at a larger military parade in October.

“The new missile definitely looks longer,” Michael Duitsman, a researcher at the California-based James Martin Center for Nonproliferation Studies (CNS), posted on Twitter.