A group of cardinals who supported the election of Pope Francis are worried that his controversial reforms are leading the Catholic church towards a schism and are planning to appeal to him to step down, a leading Vatican watcher has claimed.

“A large part of the cardinals who voted for him is very worried and the curia . . . that organised his election and has accompanied him thus far, without ever disassociating itself from him, is cultivating the idea of a moral suasion to convince him to retire,” Antonio Socci wrote in the Italian newspaper Libero.

The conservative Catholic author and journalist said that the election four years ago of Jorge Mario Bergoglio had been backed by progressive German cardinals and a curia