PYONGYANG - The top leader of the Democratic People's Republic of Korea (DPRK) said nuclear warheads "have been standardized to be fit for ballistic missiles" through miniaturization, the official KCNA news agency reported Wednesday.

"This can be called true nuclear deterrence," Kim Jong-un was quoted by KCNA as saying when he met nuclear scientists and technicians and guided work for further developing the country's nuclear arsenal.

Kim debriefed the scientists on the research about tipping various types of tactical and strategic ballistic missiles with nuclear warheads as well as specifications of Korean-style miniaturized nuclear warheads.

He said that the main mission for the DPRK's nuclear forces is to deter a nuclear war, adding that the more the nuclear strike capability gets, the more powerful the DPRK's deterrent to aggression and nuclear war grows.