The North's launches also come shortly after Seoul approved its first legislation on human rights in North Korea
The South Korean bill's passage was ahead of the U.N. Security Council unanimously approving its toughest sanctions against North Korea in 20 years.
A total of 212 South Korean lawmakers voted for the bill and 24 others abstained in the floor vote. It becomes law when it is endorsed by the Cabinet Council, considered a formality.
North Korea's state media has warned that enactment of the law would result in "miserable ruin."
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