MATERA, Italy - Pope Francis traveled to southern Italy on Sunday to close out an Italian church congress that coincided with Italy's national election, and delivered a message that hit on key domestic campaign issues including immigration.

Neither Francis nor his hosts referred to the vote during the open-air Mass, though Italy's bishops conference had earlier urged Italians to cast ballots in the eagerly watched election that could bring Italy its first far-right government since World War II.

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At the end of the outdoor Mass in Matera, Francis spoke off the cuff asking Italians to have more children. "I'd like to ask Italy: More births, more children," Francis said.

Italy has one of the lowest birth rates in the world and Francis has frequently lamented its "demographic winter."

Far-right leader Giorgia Meloni, who campaigned on a "God, family and homeland" mantra, has also called for Italy to reverse its demographic trends by proposing bigger financial incentives for couples to have children.

Francis also weighed in on a perennial issue in Italy, recalling that Sunday coincided with the Catholic Church's World Day of Migrants and Refugees. Francis called for a future in which "God's plan" is implemented, with migrants and victims of human trafficking living in peace and dignity, and for a more "inclusive and fraternal future."

He added: "Immigrants are to be welcomed, accompanied, promoted and integrated."

Meloni and her center-right alliance have vowed to resume a strict crackdown on migrants coming to Italy via Libyan-based smugglers. The center-left Democratic Party has among other things called for an easier path to citizenship for children of newcomers.

The Mass was celebrated by a protege of Francis, Cardinal Matteo Zuppi, who is head of the Italian bishops' conference and has a long affiliation with the Sant'Egidio Community, a Rome-based charity known for its outreach to migrants and the poor.

The 85-year-old Francis appeared tired during the visit, which was scheduled before Italy's snap elections were called and came a day after he made a separate day trip to the Umbrian hilltop town of Assisi. Francis has been using a cane and wheelchair this year, due to strained knee ligaments that make walking and standing difficult.

His trip to Matera, the southern Basilicata city known for its cave dwellings, underwent a slight, last-minute change due to storms that belted much of the Italian peninsula overnight: Originally scheduled to fly by helicopter Sunday morning from the Vatican's helipad, Francis instead flew to Matera by jet from Rome's Ciampino airport.