Footage shared by the Holy See showed cardinals marking his wooden and zinc coffin with red wax seals. NDTV reported.
Cardinal Kevin Farrell, who as camerlengo is running the Vatican's day-to-day affairs until a new pope is elected, sprinkled it with holy water after it was lowered into a tomb set inside an alcove.
A reproduction of the pectoral cross worn by Francis during his lifetime hung above it.
Francis had asked that the tomb, located near the altar of Saint Francis, be simple and unadorned, reflecting the humble spirit of his papacy.
