North Korea's foreign minister has warned that Pyongyang will not overlook any hostile acts on the Korean Peninsula, claiming that the peninsula's security situation is heading for a "more dangerous threshold," the North's state media reported Sunday."Recently, the security situation has been an even more dangerous threshold," the North's Foreign Minister Choe Son-hui said in her address to the fourth Eurasian Women's Forum held in St. Petersburg, according to the Rodong Sinmun, Pyongyang's main newspaper.Choe argued that an "alliance-seeking policy" of the United States and some countries that follow the U.S. has caused a "vicious cycle of escalating tensions and confrontation."On Sept. 13, North Korea publicly disclosed its uranium enrichment facility for the first time, displaying images of leader Kim Jong-un calling for boosting the state's nuclear weapons.The U.S. has strengthened security cooperation with South Korea and Japan, its major Asian allies, to counter North Korea's missile and nuclea r threats.On Saturday, the leaders of the U.S, India, Japan and Australia denounced North Korea's missile launches and its nuclear program and reaffirmed their commitment to the complete denuclearization of the Korean Peninsula.Source: Yonhap News Agency