China and the United States agreed that efforts to denuclearize the Korean Peninsula should be “complete, verifiable and irreversible,” Chinese state media said on Saturday, reporting the results of high level talks in Washington this week, Reuters reports. “Both sides reaffirm that they will strive for the complete, verifiable and irreversible denuclearization of the Korean Peninsula,” a consensus document released by the official Xinhua news agency said. US Secretary of State Rex Tillerson had said on Thursday that the United States pressed China to ramp up economic and political pressure on North Korea, during his meeting with top Chinese diplomats and defense chiefs. China’s top diplomat Yang Jiechi and General Fang Fenghui met Tillerson and Defense Secretary Jim Mattis during the talks. Yang later met with US President Donald Trump in the White House, where they also discussed North Korea, Xinhua reported.