Story highlights NIS warning covered targets including subways, shopping malls, exhibition centers, power plants

Seoul recently vowed to take "bone-numbing" measures against Pyongyang following last month's nuclear test

Seoul (CNN) North Korea is currently planning a "terrorist attack" on South Korea according to the South's spy agency.

A lawmaker, briefed by the National Intelligence Service (NIS), says leader Kim Jong Un himself gave the order to make preparations.

Photos: North Korea launches rocket Photos: North Korea launches rocket The Kwangmyongsong carrier rocket blasted off from the Sohae launch facility at 9 a.m Sunday (7:30 p.m. ET Saturday), entering orbit nine minutes and 46 seconds after liftoff, North Korea's state news agency KCNA reported. Hide Caption 1 of 8 Photos: North Korea launches rocket A state TV newsreader said the operation had been personally ordered and directed by North Korean leader Kim Jong Un. Hide Caption 2 of 8 Photos: North Korea launches rocket State media reported that more satellite launches were planned. Hide Caption 3 of 8 Photos: North Korea launches rocket U.N. Secretary-General Ban Ki-moon called the launch "deeply deplorable" and in violation of Security Council resolutions "despite the united plea of the international community against such an act. Hide Caption 4 of 8 Photos: North Korea launches rocket North Korean leader Kim Jong Un looked on as the rocket blasted off. Hide Caption 5 of 8 Photos: North Korea launches rocket State media captures a moment on the rocket at lift off. Hide Caption 6 of 8 Photos: North Korea launches rocket The United States, South Korea, Japan, China, Russia, Britain and France, as well as the European Union and NATO, were swift to condemn the action. Hide Caption 7 of 8 Photos: North Korea launches rocket An official photograph shows the control room. Hide Caption 8 of 8

"North Korea's terrorist attack could be in the form of causing harms to anti-North Korean activists, North Korean defectors or government officials," said Saenuri Party member, Lee Chul-woo, when CNN contacted his office Thursday.

Members of the ruling Saenuri Party held a closed-door meeting with the NIS, defense ministry and other ministries.

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The NIS warning covered a large number of possible targets, including "subways, shopping malls, exhibition centers, power plants" as well as possible cyber attacks.