Vatican police arrested Pope Benedict XVI's personal butler on Friday following an investigation into the Vatileaks scandal in which confidential church documents, including pesonal letters to the pope, were made public.

News of the arrest came a day after Ettore Gotti Tedeschi, president of the Vatican bank, was ousted by its board. The pope set up a special commission of cardinals last month to investigate the leaks.

The Vatican is yet to release the name of person in custody, but the UK's Telegraph reported that the butler has been identified as Paolo Gabriele, 40, who has been by the pope's side for six years.

The documents were leaked to Italian media early this year. They included personal letters to the pope and allegations of corruption. The papers also showed how Vatican contracts were favorably awarded and alleged internal disagreement on the management of the Vatican's bank, Reuters reported.