Pope, Patriarch sign declaration on unity

Pope Francis and Russian Orthodox Patriarch Kirill have signed a joint declaration on religious unity after their historic meeting in Havana.

The declaration calls for peace in Syria, Iraq and Ukraine and urges Europe to "maintain its faithfulness to its Christian roots."

Before flying off to begin a five-day visit to Mexico, Francis said of his meeting with Kirill that "we spoke clearly and directly. I greatly appreciate his desire for unity."