The epicenter of the magnitude-5.0 earthquake in North Korea [Photo: CENC]

North Korean state television announced the success of its fifth nuclear test on Friday.

China's Ministry of Environmental Protection (MEP) earlier activated a contingency plan following the test.

The MEP initiated a Class-II emergency response at 8:35 a.m. after a magnitude-5.0 earthquake was detected in the North Korea at 8:30 a.m., which is caused by the nuclear test.

Radiation monitoring stations in China's three northeastern provinces and eastern Shandong Province are operating normally.

The MEP has also started radiation monitoring at the country's northeastern border.

Reports are suggesting that shaking can be felt across the Chinese border in the province of Jilin.