Photos: Pope calls Armenian slaughter an act of genocide

Supreme Patriarch and Catholicos of All Armenians, Karekin II, left, attends a papal Mass for Armenian Catholics at the Vatican on April 12.

Pope Francis leads a Mass for Armenian Catholics in St. Peter’s Basilica in Vatican City on April 12.

Armenian President Serzh Sargsyan, center, arrives to attend an Armenian rite Mass celebrated by Pope Francis at the Vatican on April 12.

Pope Francis, left, presides over an April 12 Armenian rite Mass at the Vatican to mark the 100th anniversary of the Armenian genocide.