UNITED NATIONS -- The United States should be ashamed of its repeated groundless accusations against China at the UN Security Council this week, said a Chinese envoy on Friday.

Geng Shuang, China's deputy permanent representative to the United Nations, rejected the US representative's accusation against China for the so-called export of dual-use materials to Russia.

"China did not start the Ukraine crisis, nor is it a party to it. China has never provided lethal weapons to any party to the conflict and has always strictly controlled the export of dual-use materials, including drones," Geng told the Security Council. "We urge the United States to stop shifting blame over the Ukraine issue and creating confrontation, and instead, to make concrete efforts to promote ceasefire and peace talks."

On Tuesday, the US representative took advantage of an open debate of the council to attack and accuse China over the South China Sea issue. On Thursday, when the council held an open meeting on cooperation between the UN and the Organization of Islamic Cooperation, the US representative, once again, started provocation by slandering and smearing China on Xinjiang-related issues.

"Within a single week, the United States has made groundless accusations against China at the Security Council multiple times. This has proved that what the United States cares about is not maintaining international peace and security or promoting the political settlement of wars and conflicts, but rather using this council to attack and suppress other countries and engage in political manipulation to serve its own agenda," said Geng.

"As a permanent member of the Security Council, the United States should be ashamed of and disgraced by its own words and deeds," he said. "China urges the United States to change course at an early date and engage constructively in the work of the Security Council."

On the issue of Ukraine, China has been calling for a ceasefire and is committed to promoting peace talks, Geng said, adding that China's efforts have been widely recognized by the international community.

"For the United States, I would like to say that the international community needs solidarity and cooperation instead of division and confrontation in the face of so many hotspot conflicts and a complex international situation," he said.