US Kerry pressures China to 'denuclearize' North Korea

China needs to toughen its approach to North Korea to push the isolated country to abandon its nuclear weapons program, US Secretary of State John Kerry said in Seoul ahead of a visit to Beijing, Pyongyang's one major ally, on Saturday.
Kerry said all parties who espoused denuclearization on the Korean peninsula needed to ensure it happened.
"If that is your policy, you have got to put some teeth into it," Kerry said, referring to China at a business meeting following government meetings.