The National Defense Commission of the Democratic People's Republic of Korea (DPRK) said the country would never contact with South Korea's Lee Myung-bak government any more, the official KCNA news agency reported Friday.

The commission said in a statement that "the DPRK will have no dealings with the Lee Myung Bak group forever," as it prevented the South Korean people from paying condolence visits to late leader Kim Jong Il by claiming that "sympathy to citizens separated from the north regime."

It was the DPRK army's self-defensive shell-firing on Yeonpyeong Island for coping with South Korea's preemptive provocation in the wake of the warship Cheonan sinking case, which was not related to the DPRK, said the statement.

However, the South Korean government's attempt to link the "final responsibility" for the warship Cheonan sinking and shelling on Yeonpyeong Island with the DPRK "hurt the dignity of the supreme leadership of the DPRK," it added.

"We will unswervingly keep to the path of Juche indicated by Kim Jong Il true to the intention of President Kim Il Sung," the statement said, citing joint authorization of the party, state, army and people of the DPRK.

It also noted that the army and people of the DPRK will keep to the path of improving north-south relations and achieving peace and prosperity through the nationwide drive, to implement the historic "June 15 Joint Declaration" and the "October 4 Joint Declaration" under the banner of independence, peace and reunification.