China has told the Trump administration it warned North Korea it would impose unilateral sanctions should Pyongyang carry out another nuclear test, U.S. Secretary of State Rex Tillerson said on Thursday, in possibly China's toughest threat yet against its defiant neighbor.Tillerson, speaking on Fox News, said China has asked North Korea not to conduct any more nuclear tests. He noted that major commemorations in North had passed in recent days without a feared nuclear test or test of any intercontinental ballistic missile.
"And in fact we were told by the Chinese that they informed the regime that if they did conduct further nuclear tests, China would be taking sanctions actions on their own," Tillerson said, without specifying what sanctions he was referring to.
Tillerson did not say when China made the threat and there was no immediate confirmation from Beijing. He is due to chair a meeting with U.N Security Council foreign ministers on Friday, where he said he would stress the need for members to fully implement existing sanctions as well as possible next steps.