JP Morgan Chase is closing the Vatican bank's account with an Italian branch of the U.S. banking giant because of concerns about a lack of transparency at the Holy See's financial institution, Italian newspapers reported. The move is a blow to the Vatican's drive to have its bank included in Europe's white list" of states that comply with international standards against tax fraud and money-laundering. The bank, formally known as the Institute for Works of Religion (IOR), enacted major reforms last year in an attempt to get Europe's seal of approval and put behind it scandals that have included accusations of money laundering and fraud. The IOR, founded in 1942 by Pope Pius XII, handles financial activities for the Vatican, for orders of priests and nuns, and for other Roman Catholic religious institutions. The IOR was entangled in the collapse 30 years ago of Banco Ambrosiano, with its lurid allegations about money-laundering, freemasons, mafiosi and the mysterious death of Ambrosiano chairman Roberto Calvi - "God's banker". The IOR then held a small stake in the Ambrosiano, at the time Italy's largest private bank and investigators alleged that it was partly responsible for the Ambrosiano's fraudulent bankruptcy. Several investigations have failed to determine whether Calvi, who was found hanging under Blackfriars Bridge near London's financial district, killed himself or was murdered. The IOR denied any role in the Ambrosiano collapse but paid $250 million to creditors in what it called a "goodwill gesture".