Pope Francis will preside over a reconciliation ceremony between Colombian victims and former guerrillas during a September visit aimed at consolidating the peace process to end Latin America's longest-running armed conflict.

Francis will also pay homage to the patron saint of slaves, the 16th century Jesuit priest St. Peter Claver, when he travels to the former slave-trading hub of Cartagena.

The Vatican on Friday released details of Francis' September 6-11 trip, his fifth to Latin America and the first papal visit to Colombia since St. John Paul II's pilgrimage in 1986.