UNITED NATIONS - China Wednesday called on the parties concerned to ensure "peaceful, stable transition" in the transfer of security responsibilities in Afghanistan.

Wang Min, deputy permanent representative of the Chinese Mission to the UN, told a Security Council meeting here that Afghanistan has been undergoing a critical period of transition, and continued efforts are needed in security, political, economic and social sectors to achieve comprehensive and balanced development.

China is seriously concerned over the recent worsening security situation and the rising civilian casualties in Afghanistan, Wang said.

"We hope in the transfer of security responsibilities to the Afghan government, parties concerned will earnestly assume responsibilities to help Afghanistan strengthen its security capacity-building to ensure a peaceful and stable transition," the ambassador said.

On achieving peace, stability and development, Wang said there is a need to "fully respect Afghanistan's independence, sovereignty, and territorial integrity and support its ownership and leadership to achieve in earnest Afghanistan run by Afghans."

He said China supports Afghanistan in its national reconciliation efforts and hopes to see progress in its peace and reintegration program.

Wang also called on the international community to deliver and fulfill its commitment to assist Afghanistan and expressed China's support for the UN Assistance Mission in Afghanistan (UNAMA) in its continued efforts to play a central and leading role in coordinating aid.

US President Barack Obama announced last month the gradual drawdown of US forces from Afghanistan. According to his plan, 10,000 troops will be pulled out from the country by year end, and a total of 33,000 troops will be out by next summer, fully recovering the surge troops the president announced late 2009.

British Prime Minister David Cameron announced on Wednesday that Britain will reduce its 9,500-strong troops in Afghanistan by 500 in 2012.