The North Korean KN-02 short-range ballistic missile is a reverse-engineered and upgraded version of the Soviet Tochka with a longer range. The KN-02 is broadly equivalent to improved Scarab-B missile. It was successfully test-fired in 2005. It is believed that quantity production of this missile commenced in 2006. It is speculated that at least 50 of these tactical missile systems are in service with the North Korean army.