North Korea launched two long-range cruise missiles as part of a "tactical nuclear strike drill," the country’s state media has reported.

"A firing drill for simulated tactical nuclear attack was conducted at dawn of September 2 to warn the enemies of the actual nuclear war danger," North Korea 's official Korean Central News Agency (KCNA) said.

Tipped with mock nuclear warheads, two long-range strategic cruise missiles were fired during the drill, it added.

'To deter war and preserve peace'

The "nuclear strike mission", Pyongyang claimed was "successfully" conducted, with the flight track stimulating the distance of 1,500 kilometers for 7.672 to 7.681 seconds, respectively, and detonating at a preset altitude of 150 meters above the target.

"The nuclear force of the DPRK will bolster up its responsible combat counteraction posture in every way to deter war and preserve peace and stability," the KCNA said, referring to the North Korea by its official name.