7 And some two years later, October 7, 1954, another Encyclical Letter was addressed to you, beginning Ad Sinarum gentem, in which We refuted accusations made against Catholics in China. We openly declared that Catholics yielded to none (nor could they do so) in their true loyalty and love of their native country. Seeing also that there was being spread among you the doctrine of the so-called "three autonomies," We warned - by virtue of that universal teaching authority which We exercise by divine command - that this same doctrine as understood by its authors, whether in theory or in its consequences, cannot receive the approval of a Catholic, since it turns minds away from the essential unity of the Church.
Source: Ad Apostolorum Principis (Vatican.va)