Catholics and people of all faiths are saddened today, South Africa's President Cyril Ramaphosa says
More tributes now from world leaders:
South Africa's President Cyril Ramaphosa says Pope Francis had "humility" and a profound commitment to "making the Church and the world a better place".
Meanwhile Australian Prime Minister Anthony Albanese calls the late Pope a "modernist", and says he was "a devoted champion and loving father" for Australian Catholics.
Bangladesh's interim government says Pope Francis was "a towering figure of moral clarity, humility, and compassion".
And Nigerian President Bola Tinubu hails him as a "trenchant voice" for climate action.
