Pope Francis has declared John XXIII and John Paul II saints in a ceremony made more historic by the presence of retired Pope Benedict XVI.
The men being made saints today left their mark on the Catholic Church in different ways. Here's all you need to know about the pontiffs.
Hollywood actor Russell Crowe, who stars in a new film about Noah, has been turned down for an audience with the Pope.
A report by United Nations has attacked the Vatican for covering up decades of sexual abuse of children.
The report demanded the Vatican "immediately remove" all clergy who are known or suspected child abusers and hand them to the authorities.
ITV News diplomatic correspondent John Ray reports:
The Vatican has said it will give "thorough study and examination" to a UN report that has accused the Catholic Church of failing to act on, and even covering up, child sex abuse.
The Holy See made no comment on its suggested culpability but said the Church remained committed to protecting children from abuse.
However, it accused the UN committee responsible for the report of interfering with its teachings on abortion and contraception after the report recommended a change in the approach to sexual education in Catholic schools.
The UN committee on the Rights of the Child has said the Catholic Church has not yet taken measures to prevent a repeat of cases of forced labour such as Ireland's Magdalene laundries scandal.
A separate official report, published in February last year, found the Irish state was responsible for sending many women and girls to the now-notorious laundries, where they were subjected to a harsh regime of intimidation, prayer and unpaid work.
Today's UN report has called for the Vatican to begin an internal investigation of the laundries and similar institutions to lead to appropriate prosecutions. It has demanded that "full compensation be paid to the victims and their families" upon its completion.
The Vatican is expected to issue a statement on the damning UN report later today.
A scathing United Nations report has demanded the Vatican "immediatedly remove" all clergy who are known or suspected child abusers and hand them to the authorities.
In its most far-reaching criticism of the Church hierarchy to date, the UN watchdog for children's rights said it is "gravely concerned" the Holy See "has not acknowledged the extent of the crimes committed".
It accused the Vatican of adopting "policies and practices" which led to abuse continuing and ensured "the impunity of the perpetrators".
The UN body said the Church must hand over its archives on sexual abuse of tens of thousands of children so that culprits, as well as "those who concealed their crimes", can be held accountable.
A crow and a seagull attacked doves released by the Pope in front of tens of thousands of onlookers in St Peter's Square.
The two doves, released as a gesture of peace, were descended upon during an Angelus prayer conducted by Pope Francis.
Pope Benedict XVI defrocked nearly 400 priests over just two years for molesting children according to a document obtained by the Associated Press.
The statistic, which relates to 2011 and 2012, emerged in the testimony of the Vatican's UN ambassador in Geneva, Archbishop Silvano Tomasi, before a UN committee.
The Holy See has had to defend itself before the UN human rights committee this week following reports of widespread child abuse in the Catholic Church.
Previously, the Vatican has only revealed the number of alleged cases of sexual abuse it had received.
The Vatican's culture representative, Cardinal Gianfranco Ravasi, has tweeted a verse from Lou Reed's song 'Perfect Day' in tribute to the US singer who died on Sunday.
Oh, it's such a perfect day I'm glad I spend it with you Oh, such a perfect day You just keep me hanging on (Lou Reed)
The song has been interpreted as a reference to drug-taking, but the 71-year-old minister, who is the same age as Mr Reed was when he died, later clarified that he was not condoning any references to drugs.
Colourful balloons and soap bubbles have filled St. Peter's Square as Pope Francis preached to a notably younger audience at the Vatican.
Pope John Paul II, the Polish pontiff who led the Catholic Church for 27 years and witnessed the fall of communism and Pope John XXIII, who called the reforming Second Vatican council, will be declared saints on April 27, Pope Francis has announced.
The announcement of the date for the canonisations had been expected since July when Francis approved a second miracle attributed to John Paul, opening the way to the fastest canonisation in modern times.
He also approved sainthood for John, who reigned from 1958 to 1963 and who oversaw sweeping reforms to modernise the Church, even though he has only been credited with one miracle since his death.