Beijing expressed its opposition to Pyongyang's use of ballistic missile technology in violation of UN Security Council resolutions on Friday, calling for restraint from all relevant partiesChina also does yobo体育APP官方版not hold the key to the Korean Peninsula issueShe noted that the essence of the nuclear issue on the Korean Peninsula is a security issue, and the core is conflict between Pyongyang and WashingtonAccording to Hua, China has strictly and comprehensively implemented UN Security Council resolutions, and has made "enormous sacrifices at a great price"The ROK's military said it conducted a live-fire drill by mobilizing Hyunmoo-2A ballistic missiles about six minutes after the DPRK's missile launchyobo体育APP官方版Hua also said it is "irresponsible" to blame Beijing for regional tensions after US Secretary of State Rex Tillerson called on China to use the "powerful tool" of oil to persuade Pyongyang to reconsider its "current path"