The Vatican on Saturday signed an agreement giving it a long-desired and decisive say in the appointment of bishops in China, though critics labeled it a sellout to the government.

China's around 12 million Catholics have been split between an underground Church swearing loyalty to the Vatican and the state-supervised Catholic Patriotic Association.

The Catholic Church in China said it would "persevere to walk a path suited to a socialist society, under the leadership of the Chinese Communist Party."

It "deeply loved the motherland" and "sincerely endorsed" the agreement, hoping relations between China and the Vatican would improve further, it added in comments on its website.