"Honestly, I think the United States should be doing … much more than now, so that there's real effective international cooperation on this issue," Cui said"Everybody else will havebeplay网页登入 to do their share; they cannot leave this issue to China alone," Cui saidThe ambassador said China has done its best to implement the UN Security Council resolutions in a strict and full fashion, while pushing for relevant parties to resolve problems through peaceful negotiations"China is not the driver behind the escalation of the tensionsAll relevant parties should remain calm and avoid abeplay网页登入ctions that intensify tensions," Foreign Ministry spokeswoman Hua Chunying said after Pyongyang fired a ballistic missile that flew over northern Japan and landed in the Pacific Ocean earlier in the day"It's irresponsible and unhelpful for the settlement of the issue to unjustly blame others and shirk responsibilities in any form," she added