Archbishop Desmond Tutu (AP photo)

Condolences poured in from around the world in respond to the passing of Archbishop Desmond Tutu, a renowned theologian and civil rights activist who fought tirelessly to dismantle apartheid in South Africa.

A Nobel Prize-winning Anglican Church leader, Tutu died on Sunday, Dec. 26 in Cape Town, announced South African President Cyril Ramaphosa.  He was 90-years-old.

In a tweet, former President Barack Obama called Tutu a “mentor, a friend, and a moral compass for me and so many others. A universal spirit, Archbishop Tutu was grounded in the struggle for liberation and justice in his own country, but also concerned with injustice everywhere.”

Sharing similar comments, former President Bill Clinton noted, Archbishop Desmond Tutu reminded us all that the search for justice begins in the heart. Those of us touched by the gift of his life owe it to him to pass it on.”

Expressing the sentiments of the country, Ramaphosa said, “The passing of Archbishop Emeritus Desmond Tutu is another chapter of bereavement in our nation’s farewell to a generation of outstanding South Africans who bequeathed us a liberated South Africa.”

According to The Associated Press, Tutu died peacefully at the Oasis Frail Care Center in Cape Town, the Archbishop Desmond Tutu Trust said in a statement Sunday.  He had been hospitalized several times since 2015, after being diagnosed with prostate cancer in 1997.  In recent years he and his wife, Leah, lived in a retirement community outside Cape Town.

The Nobel Peace Prize in 1984 highlighted his stature as one of the world’s most effective champions for human rights, a responsibility he took seriously for the rest of his life.  Nicknamed “the Arch,” Tutu was diminutive, with an impish sense of humor, but became a towering figure in his nation’s history, comparable to fellow Nobel laureate Nelson Mandela, a prisoner during white rule who became South Africa’s first Black president.

In 1990, after 27 years in prison, Mandela spent his first night of freedom at Tutu’s residence in Cape Town. Later, Mandela called Tutu “the people’s archbishop.”  Upon becoming president in 1994, Mandela appointed Tutu to be chairman of the Truth and Reconciliation Commission, which uncovered the abuses of the apartheid system.

Desmond Mpilo Tutu was born Oct. 7, 1931, in Klerksdorp, west of Johannesburg, and became a teacher before entering St. Peter’s Theological College in Rosetenville in 1958 for training as a priest. He was ordained in 1961 and six years later became chaplain at the University of Fort Hare. Moves to the tiny southern African kingdom of Lesotho and to Britain followed, with Tutu returning home in 1975. He became bishop of Lesotho, chairman of the South African Council of Churches and, in 1985 the first Black Anglican bishop of Johannesburg and then in 1986, the first Black archbishop of Cape Town. He ordained women priests and promoted gay priests.

Tutu was arrested in 1980 for taking part in a protest and later had his passport confiscated for the first time. He got it back for trips to the United States and Europe, where he held talks with the U.N. secretary-general, the pope and other church leaders. Tutu called for international sanctions against South Africa and talks to end the conflict.

Tutu often conducted funeral services after the massacres that marked the negotiating period of 1990-1994. He railed against black-on-black political violence, asking crowds, “Why are we doing this to ourselves?” In one powerful moment, Tutu defused the rage of thousands of mourners in a township soccer stadium after the Boipatong massacre of 42 people in 1992, leading the crowd in chants proclaiming their love of God and themselves.

After Mandela became president in 1994, he asked Tutu to head the truth commission to promote racial reconciliation. The panel listened to harrowing testimony about torture, killings and other atrocities during apartheid. At some hearings, Tutu wept openly.

“Without forgiveness, there is no future,” he said at the time. The commission’s 1998 report lay most of the blame on the forces of apartheid, but also found the African National Congress guilty of human rights violations. The ANC sued to block the document’s release, earning a rebuke from Tutu. “I didn’t struggle in order to remove one set of those who thought they were tin gods to replace them with others who are tempted to think they are,” Tutu said.

In July 2015, Tutu renewed his 1955 wedding vows with wife Leah. The Tutus’ four children and other relatives surrounded the elderly couple in a church ceremony. “You can see that we followed the biblical injunction: We multiplied and we’re fruitful,” Tutu told the congregation. “But all of us here want to say thank you … We knew that without you, we are nothing.”

Tutu is survived by his wife of 66 years and their four children.

Asked once how he wanted to be remembered, he told The Associated Press: “He loved. He laughed. He cried. He was forgiven. He forgave. Greatly privileged.”

AP journalists Andrew Meldrum and Christopher Torchia contributed to this report.