Germany's Catholic bishops have praised Martin Luther as a "Gospel witness and teacher of the faith" and called for closer ties with Protestants.

In a 206-page report, "The Reformation in Ecumenical Perspective", Bishop Gerhard Feige of Magdeburg, chairman of the German bishops' ecumenical commission, said the "history of the Reformation has encountered a changeable reception in the Catholic Church, where its events and protagonists were long seen in a negative, derogatory light".

"While the wounds are still felt to the present day, it is gratifying that Catholic theology has succeeded, in the meantime, in soberly reconsidering the events of the 16th century," he said in the report, published this week by Germany's Bonn-based bishops' conference.