"The task of launching three additional reconnaissance satellites in 2024 was declared" as one of the key policy decisions for next year at a year-end party meeting, the official KCNA news agency said.

Pyongyang successfully put a military spy satellite into orbit last month and has since claimed it was providing images of major US and South Korean military sites.

The five-day meeting, which ended Saturday, was attended by North Korean leader Kim Jong Un.

At the meeting, Kim said he would no longer seek reconciliation and reunification with South Korea, noting "a persisting uncontrollable crisis situation" on the peninsula, saying it was triggered by Seoul and Washington.

Inter-Korean relations are in a poor state as Seoul and Washington have ramped up defence cooperation this year in the face of a record-breaking series of weapons tests by Pyongyang.

"I believe that it is a mistake that we should no longer make to consider the people who declare us as the 'main enemy'... as a counterpart for reconciliation and unification," KCNA cited Kim as saying.

Kim ordered the drawing-up of measures for reorganising departments handling cross-border affairs, to "fundamentally shift the direction".