The U.N's refugee agency has criticized Thailand for deporting two refugees who were about to be resettled in a third country, and whom rights groups have named as Chinese pro-democracy activists.

The statement from the Bangkok office of the U.N. High Commissioner for Refugees did not give the names or nationalities of the pair or the country that granted them asylum. It said Tuesday it was deeply concerned over the Thai government's action, taken despite numerous appeals from its office and others.

The U.S. branch of Amnesty International issued a statement Monday identifying them as Jiang Yefei and Dong Guangping, and said they were most likely sent Friday to China. U.S. government-supported Radio Free Asia gave the same identification.