BEIJING -- China is seriously concerned about the latest developments in the nuclear and missile programs of the Democratic People's Republic of Korea (DPRK), Foreign Ministry spokesperson Lu Kang said Wednesday.

The comments came after DPRK deputy ambassador to the United Nations and its vice Foreign Minister reportedly said that a new nuclear test was under preparation and more missile tests would be conducted on a weekly, monthly and yearly basis.

"China is committed to denuclearizing the Korean Peninsula, maintaining peace and stability there, and resolving problems through dialogue and consultation. China's stance on this is unswerving," Lu said.

Lu stressed that given the complicated and sensitive situation on the Korean Peninsula, China firmly opposes any words and deeds that could heighten hostility and tension.

The spokesperson called on all parties involved to make efforts to ease the tension.