内容摘要：North Korean leader Kim Jong Un and his sister Kim Yo Jong attend a meeting with then South Korean P

North Korean leader Kim Jong Un and his sister Kim Yo Jong attend a meeting with then South Korean President Moon Jae-in at the Peace House at the truce village of Panmunjom inside the demilitarized zone separating the two Koreas, in this April 27, 2018 file photo. Reuters-Yonhap

The sister of North Korean leader Kim Jong-un issued a statement Tuesday criticizing those who question the secretive regime's assertion of having made significant progress in its satellite and long-range ballistic missile development.

Kim Yo-jong, vice department director of the Central Committee of the Workers' Party of Korea, took issue with a view among experts in the outside world, including those in South Korea, that low-resolution, black-and-white images of Seoul and Incheon, released by Pyongyang the previous day, are too crude to be satellite photos.

The North claimed the launch of rockets was part of its military reconnaissance satellite project and made public those two photos, presumed to be taken from a mock satellite.

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Some experts here soon said the quality of the imagery is too poor.

Kim said it's "inappropriate and hasty" to assess the North's satellite development capabilities and relevant preparations with the two photos alone.

She also condemned those who question whether the North has mastered the atmospheric reentry technology for its intercontinental ballistic missile (ICBM). (Yonhap)