Updated

Pope Francis has penned a new missive on the injustices of poverty amid indications that he and his cardinal advisers are eyeing a major overhaul of the Vatican's financial house.

Honduran Cardinal Oscar Rodriguez Maradiaga, a key adviser in Francis' Group of Eight cabinet, told the French Catholic newspaper La Croix that the idea of creating a "finance secretariat" was not only necessary but reasonable to better organize the Vatican's diverse financial departments so they can better serve the church.

He said: "A cardinal will probably be in charge of the finance secretariat, but one could also think about a permanent counsel to help him, including lay people."

The development came as Francis ended his third and final day of meetings with his advisers on Wednesday.