The broadcasting service added that if their operational direction is changed, the drill can be termed the one for "infiltrating into Pyongyang".

Earlier, it was detected that various special operation units of the U.S. covertly moved to Jinhae Naval Base of south Korea around late July or early August aboard a nuclear-powered submarine.

Minju Joson Tuesday in a commentary terms this an extremely provocative and risky military move to chill the hard-won atmosphere of peace and dialogue on the Korean peninsula and the efforts for implementing the Singapore DPRK-U.S. joint statement.

The secret drills staged by the U.S. special operation units are just good-for-nothing military moves that will never help the development of the DPRK-U.S. relations, the commentary says, and goes on:

The U.S. is utterly mistaken if it thinks that it can stun someone by its hackneyed way of "gunboat diplomacy" it employed like an almighty weapon in the past century.

If the U.S. deteriorates the relations with the DPRK and brings the danger of war to the Korean peninsula again, those who hatched the military plots must be held wholly accountable for it.