Members of the Mortgage Victims' Platform (PAH) occupy a Banco Popular branch during a protest in Barcelona May 10, 2013. Spain's banking sector clean-up is about to enter a crucial new phase, bankers and analysts say, with lenders to be forced to recognise yet more bad debts in a painful but possibly final step towards recovery. Spanish banks booked heavy provisions last year to cover risks related to toxic real estate assets, but they have not yet properly acknowledged the dangers lurking in 208 billion euros of refinanced loans to companies and households. REUTERS/Gustau Nacarino (SPAIN - Tags: BUSINESS POLITICS CIVIL UNREST)