According to experts, US President Donald Trump's belittle of North Korea's missile tests has allowed it to step up those activities at a time when it is trying to increase its weight before the resume of any talks, which may happen sometime after the end of the joint Seoul and Washington military exercises later this month.
The launches have complicated attempts to restart talks between US and North Korean negotiators over the future of Pyongyang's nuclear weapons and ballistic missile programs.
Pyongyang has routinely expressed anger at the war games, which it considers rehearsals for invasion, but in the past has avoided carrying out tests while the manoeuvres are taking place.
The committee is the North's government agency tasked with managing relationships with the South.
Moon and Kim have met three times since April past year, pledging cooperation in working toward a peace deal, but little progress has been made to improve dialogue and strengthen exchanges and cooperation.
"His speech deserves the comments "foolish commemorative speech", the North said in its statement.
If at all anything, the missile launches have complicated attempts to restart negotiations between the U.S. and North Korean negotiators over the future of Pyongyang's nuclear weapons and ballistic missile programmes.
It called Moon an "impudent guy rare to be found", for hoping for a resumption of inter-Korean talks while continuing military drills with Washington.
Six days ago, North Korea fired two short-range ballistic missiles into the Sea of Japan.
South Florida immigration activists react to new green card rules
It will be up to those officials to make a determination if someone will end up needing government assistance after arriving in the U.S.
Saying that such drills are defensive in nature, Seoul and Washington said that the ongoing exercise that kicked off in earnest on Monday for a 10-day program is meant to test South Korea's operational capabilities for the conditions-based transition of wartime operational control of combined forces from Washington to Seoul.
The NSC panel convened its previous emergency session July 31 following the North's firing of two apparent short-range ballistic missiles.
The unidentified spokesman repeated criticism that the joint U.S.
In a televised speech on Thursday, Mr. Moon had said momentum for dialogue remains alive despite the series of "worrying actions taken by North Korea recently".
"His open talk about "dialogue" between the North and the South under such a situation raises a question as to whether he has proper thinking faculty", the spokesman said.
Seoul's Unification Ministry said the North's comments are not "consistent" with the spirit of inter-Korean agreements, including the Panmunjom Declaration signed by Moon and Kim in April a year ago. No ballistic missile tests.
South Korea insisted that the "combined command post exercise" is necessary as part of its efforts to assume operational control of troops should war break out - a position now held by the top US general in South Korea.
Chung and other national security officials, who attended the meeting, made a "general review of military security conditions" on the Korean Peninsula, according to Cheong Wa Dae.