Mexico City, Mexico - President Enrique Peña Nieto last Saturday announced that Pope Francis has accepted an invitation to visit Mexico.

"Without doubt, this is cause for great joy," the President declared after announcing to the Mexican press that "the Pope has accepted the invitation."

Peña Nieto made the announcement after his private meeting with the pontiff in the Apostolic Palace.

The dates for the visit are not known, but could come near the Pope’s hoped-for visit to Philadelphia for the "World Meeting for Families" in late September 2015. Such a visit to the US has not been confirmed by the Vatican.

President Peña Nieto said he told the Pope that the people of Mexico are mostly Catholic. The Pope reportedly replied "they are Catholic but especially Guadalupano," referring to their devotion to Our Lady of Guadalupe.

The Pope also said that he has "a special affection for the Mexican people," the Mexican President added.

Peña Nieto and the Pope’s 25-minute private meeting discussed constitutional reform, especially as it relates to religious freedom.

The President said the Mexican government reaffirmed an interest in "a respectful and cordial relationship with the Vatican" and said that Mexico’s nature as a secular state "does not mean an anti-religious state."

Pope Francis also voiced concern about migrants, both those entering Mexico from Central America and those entering the US from Mexico.