MINNEAPOLIS (AP) — A University of Minnesota professor's invitation to speak at a Roman Catholic parish was rescinded because his abortion views clash with church teaching.

Dr. Steven Miles, a medical ethicist, was supposed to speak at an adult education class before this Sunday's sermon at the St. Joan of Arc Church. He was to talk about torture.

But the Archdiocese of St. Paul and Minneapolis decided Miles wouldn't be allowed to speak. A statement from the diocese said it was because of his "public advocacy of abortion, which is fundamentally contrary to the teachings of the Catholic Church."

Miles says he was surprised because he has made no secret of his personal views and that it's a part of his job. He said his talk had nothing to do with abortion.

Similar situations have arisen since the U.S. Conference of Catholic Bishops four years ago adopted a statement prohibiting Catholic institutions from giving "awards, honors and platforms" to those who oppose the church's fundamental positions, particularly against abortion.