In a devastating report, the UN committee also severely criticised the Holy See for its attitudes toward homosexuality, contraception and abortion and said it should review its policies to ensure children's rights and their access to health care are guaranteed.
On sex abuse, "the committee is gravely concerned that the Holy See has not acknowledged the extent of the crimes committed, has not taken the necessary measures to address cases of child sexual abuse and to protect children, and has adopted policies and practices which have led to the continuation of the abuse by, and the impunity of, the perpetrators," the report said.
The committee issued its recommendations after subjecting the Holy See to a daylong interrogation last month on its implementation of the UN Convention on the Rights of the Child, the main international treaty ensuring children's rights.
During that session, the committee's independent experts grilled the Holy See on its protection of children, working from reports prepared by victims groups and human rights organisations.