Pope performs 'unexpected' wedding on a plane in Chile

It was the first time a pope has celebrated a wedding during a flight.

ROME -- This morning Pope Francis married a couple on board his flight from the Chilean capital, Santiago, to the northern coastal town of Iquiqe, where he was headed to celebrate a large open-air mass.

It is the first time a pope has celebrated a wedding during a flight, according to the Vatican.

The couple were introduced to the Pope on the plane and asked if he would bless their marriage. Instead, he asked them if they wanted him to perform their religious marriage. They said they were surprised, but agreed immediately.

The event was "unexpected," Greg Burke, the Vatican spokesman, told reporters who were travelling on the plane with the Pope to his next destination.

After the ceremony, the couple told the journalists on the plane, "It was very moving. We can’t believe the pope married us! Marriage works...we hope it will promote marriage."

Later today, the Pope is scheduled to fly to the capitol city of Peru, Lima. The pontiff's visit to Peru will last through Sunday.