Director General of UN nuclear watchdog Yukiya Amano Tuesday expressed deep regret over the nuclear test by the Democratic People's Republic of Korea (DPRK) the same day.

Amano said that the DPRK announced it had carried out the third nuclear test, despite calls from the international community not to do so.

"This is deeply regrettable and is in clear violation of UN Security Council resolutions," he added.

The director general urged the DPRK to fully implement all relevant UN Security Council resolutions and all relevant IAEA Board of Governors resolutions.