China urged all relevant parties on Wednesday to remain rational and calm and to avoid activities that may further intensify tensions on the Korean Peninsula.

Foreign Ministry spokesman Geng Shuang made the remark after Pyongyang condemned and categorically rejected the latest United Nations Security Council resolution imposing extra sanctions in response to its Sept 3 nuclear test.

The Democratic People's Republic of Korea's foreign ministry said in a statement that the resolution is an infringement on its legitimate right to self-defense and aimed at "completely suffocating its state and people through full-scale economic blockade", Reuters reported.