(April 4): Taiwan on Thursday condemned China as "shameless" after Beijing's deputy ambassador to the United Nations (UN) thanked the world for its concern about a strong earthquake on the island.

China claims democratically governed Taiwan as its own territory, and also claims the right to speak for it on the international stage, to the fury of Taipei, given that Beijing's communist government has never ruled the island, and has no say in how it chooses its leaders.

On Wednesday, after the 7.2 earthquake hit eastern Taiwan, killing 10 people, China's Deputy Permanent Representative to the UN, Geng Shuang, mentioned in a meeting about children's rights that another speaker had brought up the quake in "China's Taiwan".

China is concerned about the damage, and has expressed condolences to Taiwan and offered aid, he said, according to a transcript of his remarks carried on the Chinese mission to the UN's website.

"We thank the international community for its expressions of sympathy and concern," he added.

Taiwan's Foreign Ministry expressed anger at the remarks.

The ministry "solemnly condemns China's shameless use of the Taiwan earthquake to conduct cognitive operations internationally", it said, using Taiwan's normal term for what it views as Chinese psychological warfare.

This shows China has no goodwill towards Taiwan, the ministry added.

Taiwan's government has already thanked governments and leaders around the world for their messages of concern and offers of support, including from the US, the island's most important international supporter despite the lack of diplomatic ties.

The defeated Republic of China government fled to Taiwan in 1949, after losing a civil war to Mao Zedong's communists, who established the People's Republic of China with its capital in Beijing.

Taiwan's formal name remains the Republic of China.