On the 19th, the Rodong Sinmun, the organ of North Korea's Workers' Party, reported that the National Space Development Administration was conducting a "final plan for the development of a reconnaissance satellite" at the "Seohae Satellite Launch Site" in Dongchang-ri, in the northwestern part of the country. We had an important stage experiment yesterday."
The South Korean military and others have revealed that North Korea launched two ballistic missiles into the Sea of Japan on the 18th, and North Korea's announcement is believed to refer to this launch.
In addition, according to the Rodong Shimbun, the National Space Development Administration has announced that it will complete preparations for the first military reconnaissance satellite by April 2023 next year.