North Korea carried out an "important final-stage test" for the development of a spy satellite, which it will complete by April next year, state media said on Monday.
The report comes a day after Seoul's military said it had detected launches by Pyongyang of two medium-range ballistic missiles, the North's latest in a year of unprecedented weapons tests.
Analysts say developing such a satellite would provide North Korea with cover for testing banned intercontinental ballistic missiles (ICBMs), as they share much of the same technology.
The launches were "an important final-stage test for the development of (a) reconnaissance satellite", a spokesperson with the North's National Aerospace Development Administration (NADA) said, according to the official Korean Central News Agency on Monday.
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Conducted from Sohae Satellite Launching Ground in Tongchang-ri, Sunday's test confirmed "important technical indices" including camera operation in space, and data processing and transmission capabilities of communication devices .