North Korean leader Kim Jong-un's sister blasted claims by foreign experts that spy satellite images were of too poor quality for surveillance, calling it "dog barking" and "rubbish".
At the same time as rejecting the doubts over her country's military, Kim Yo-jong threatened a full-range intercontinental ballistic missile test.
North Korea has claimed to have launched a test satellite for the development of its first military spy satellite, and tested a solid-fuelled motor to be used on a more mobile intercontinental ballistic missile in the past several days.
