Gavin Jones, Reuters

Pope Leo called on Tuesday for "deep reflection" about the way migrants are being treated in the United States under President Donald Trump's administration and said the spiritual needs of those in detention needed to be respected.

Speaking to reporters in Castel Gandolfo, his residence outside Rome, the pope was asked about immigrants detained at a federal facility in Broadview, near Chicago, who have been refused the opportunity to receive holy Communion, an important religious obligation.