Korea missile a sign of 'frustration': PM

Prime Minister Malcolm Turnbull has again condemned North Korea's actions after it launched another missile over Japan.

North Korea has fired an unidentified missile over Japan. (AAP) Source: AAP

North Korea's latest missile launch over Japan is a sign of the rogue nation's frustration at being slapped with increased sanctions, Malcolm Turnbull believes.

Pyongyang fired an unidentified missile on Friday, according to South Korea's military.

"This is another dangerous, reckless, criminal act by the North Korean regime threatening the stability of the region and the world and we condemn it utterly," the prime minister told Sky News.