This photo provided by the Democratic People's Republic of Korea government shows what it says is a launch conducted by the strategic cruise missile operation unit of the Korean People's Army's western district on Sept 2, 2023. (PHOTO / AP)

SEOUL - The Democratic People's Republic of Korea (DPRK) fired two long-range strategic cruise missiles at dawn on Saturday, in a simulated tactical nuclear attack drill designed to send a warning against another round of US-Republic of Korea (ROK) joint exercises, the official Korean Central News Agency (KCNA) reported Sunday.

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The missiles tipped with mock nuclear warheads were fired from the mouth of the River Chongchon toward the western waters off the Korean Peninsula, making a flight exceeding 7,600 seconds, before the warheads were detonated at a preset altitude of 150 meters above a target island, the report said.

This photo provided by the Democratic People's Republic of Korea government shows what it says is a launch conducted by the strategic cruise missile operation unit of the Korean People's Army's western district on Sept 2, 2023. (PHOTO / AP)

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The Central Military Commission of the Workers' Party of Korea called on all the service personnel of the country's nuclear force to maintain high alertness and a mobilized posture, and make the United States and Republic of Korea (ROK) more acutely aware of the serious situation "through the overpowering exercise of the war deterrence," the report added.