(CNN) North Korea says the two new short-range ballistic missiles it launched Thursday toward the East Sea, also known as the Sea of Japan, were intended to send a warning to South Korea.

According to North Korea's state-run Korean Central News Agency (KCNA), the launches were "personally organized" by North Korean leader Kim Jong Un "as part of the power demonstration to send a solemn warning to the South Korean military."

Kim Jong Un said he was "gratified" by the performance of the "tactical guided weapon system," which came amid what appears to be another impasse in the nuclear negotiations between North Korea and the United States.

A photo provided by the North Korean government shows a test of a missile launch in North Korea.

Though US President Donald Trump and Kim agreed to resume working-level negotiations after their meeting last month , the two sides have not publicly announced any scheduled talks.

The North Korean leader criticized South Korea's decision to hold joint military exercises with the United States next month, and acquire "ultra-modern offensive weapons," according to KCNA report published Friday.

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