Mother Teresa was awarded a Nobel Peace prize for her work with the poor in Kolkata. Getty Images
Pope Francis has recognised a second miracle attributed to Mother Teresa, clearing the way for the Roman Catholic nun to be made a saint next year.
The miracle involved the healing of a Brazilian man with several brain tumours, the Vatican said.
Mother Teresa died in 1997 and was beatified - the first step towards sainthood - in 2003. She won the Nobel Peace Prize for her work with the poor in the slums of Indian city of Kolkata (Calcutta).
"The Holy Father has authorised the Congregation for the Causes of Saints to proclaim the decree concerning the miracle attributed to the intercession of blessed Mother Teresa," the Vatican said on Friday.
She is expected to be canonised in Rome in September.
'Saint of the gutter'
Beatification requires one miracle by the Catholic Church, while the process of becoming recognised as a saint requires proof of at least two miracles.
Mother Teresa was beatified in 2003 after Pope John Paul II accepted as authentic a miracle attributed to her.
The Pope judged that the curing of an Indian woman suffering from an abdominal tumour was the result of the supernatural intervention of Mother Teresa with God - a claim challenged by Indian rationalists.
Born Agnes Gonxhe Bojaxhiu in Skopje, Macedonia, in 1910, Mother Teresa founded the Missionaries of Charity in 1949, dedicating her life to caring for impoverished and sick people in Kolkata.
Known as the "saint of the gutter", she earned worldwide acclaim for her efforts.
Her critics, however, accused her of mixing with dictators and peddling a hardline Catholicism.