SEOUL - North Korea on Sunday warned Seoul’s military buildup will adversely affect the communist state’s nuclear disarmament process. The North’s state-sponsored Korean National Peace Committee issued a statement attacking South Korea’s purchase of advanced US-made fighter jets, its recent launch of a new warship and continuing military drills.‘Their behavior is a treacherous criminal act ... wrecking the peace and spoiling inter-Korean relations,’ the committee’s unnamed spokesman said in the statement carried by the official Korean Central News Agency. ‘It will also adversely affect the process of settling the nuclear issue of the Korean Peninsula.’