Beijing said on Monday it had lodged “stern representations” with the North Korean ambassador to China following the DPRK’s sixth nuclear test on Sunday.

During a regular foreign ministry press briefing, China implied it had signaled displeasure to the DPRK, though declined to say whether it had been made aware of the test beforehand.

The nuclear test was North Korea’s most powerful to date, and the country’s state media claimed the device could be mounted on an intercontinental ballistic missile (ICBM).

“The Chinese Foreign Ministry has lodged stern representations with the principal of the DPRK’s Embassy in China,”  Ministry of