Pyongyang has successfully developed rocket re-entry technology for an intercontinental ballistic missile (ICBM), North Korea’s state-run Korean Central News Agency (KCNA) reported on Tuesday.

Kim Jong Un supervised a simulation test to verify the thermodynamic structural stability. The result satisfied all technical indexes, KCNA reported.

“We have proudly acquired the reentry technology, possessed by a few countries styling themselves as military powers, by dint of self-reliance and self-development, thus making great progress in the ballistic rocket technology,” said Kim, as quoted by the KCNA.

Kim Dong-yup, professor at the University of North Korean Studies in Seoul, said North Korea already