August 10, 2020

Beijing lodged “stern” complaints to DPRK embassy over nuke test
FM spokesperson declines to say if China was given warning ahead of time

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.