The Democratic People's Republic of Korea (DPRK) conducted a "successful underground nuclear test" yesterday, shocking China and the world alike.

The DPRK's official Korean Central News Agency quoted the government as having said the test was "part of the measures to bolster its nuclear deterrent for self-defense as requested by its scientists and technicians".

Pyongyang test-fired three short-range missile just hours after the nuclear test, the Republic of Korea's (ROK) Yonhap news agency said.