Australian police flew to Rome to interview a top Vatican cardinal about allegations of sexual assault dating back decades, officials said Wednesday.

Cardinal George Pell, Pope Francis's top financial adviser and one of his most trusted aides, has long been dogged by allegations he mishandled cases of clergy abuse when he was archbishop of Melbourne and later Sydney. In recent months, Cardinal Pell has faced accusations of child abuse himself when he was a young priest in the 1970s.

On Wednesday, police in Australia's Victoria state confirmed that they had interviewed Cardinal Pell over the allegations.