Pope Francis on Tuesday named a new official to oversee the Vatican office that processes clerical sex abuse cases amid mounting criticism over the backlog of cases and Francis's handling of the problem.

The promotion of Mgr John Kennedy to head of the discipline section of the Congregation of the Doctrine of the Faith (CDF) was the second abuse-related appointment in recent days. Francis named Fr Hans Zollner, one of the Catholic Church's top experts on fighting abuse and protecting children, as an adviser to the Vatican's office for clergy on Saturday.