China agreed with South Korea to apply tougher sanctions on North Korea if it conducts more nuclear or long-range missile tests.
China Special Representative for Korean Peninsula Affairs Wu Dawei, held talks in South Korea on April 10.
South Korean Special Representative for Korean Peninsula Peace and Security Affairs Kim Hong-kyun said the two sides agreed that a stronger U.N. resolution must be put in place should another weapon test take place.
There was no discussion of possible military action.
Wu is the first senior Chinese official to visit South Korea since the deployment of the U.S. THAAD missile defense system, which has caused some tension between the two countries.
The visit comes days after Chinese leader Xi Jinping’s meeting with U.S. President Donald Trump, during which Trump told Xi to pressure North Korea to halt its arms development.