Rodong Sinmun Monday observes in a bylined commentary in this regard:

This clearly proves that the U.S. and the south Korean authorities' adventurous moves to ignite a new war against the DPRK, while posing a military threat to it, have already gone beyond the tolerance limit.

What merits a more serious attention is that U.S. and south Korean warmongers staged such a live shell firing drill, targeting the flag of the DPRK symbolic of its sovereignty and dignity, the commentary notes, and goes on:

This is an unpardonable provocation to the DPRK and a deliberate action to spark off clash between both sides.

The political and military confrontation between the north and the south reached its height. Now is the time for the Lee Myung Bak group to look back upon the serious consequences entailed by its reckless provocative racket and behave itself.

Should the U.S. and the Lee group persist in their reckless provocations, they will experience the serious and miserable consequences to be entailed by them.