German investigators have raided the offices of Deutsche Bank, the country's largest lender, as part of an investigation into suspected money laundering. The prosecutor's office could not provide further details on the nature or scale of the transactions under scrutiny. Deutsche Bank confirmed the presence of the Frankfurt public prosecutor’s office, issuing a statement that read: "We confirm that the Frankfurt public prosecutor’s office is on site in our offices. The bank is cooperating fully with the public prosecutor‘s office. In general, money laundering can be defined as transactions intended to obscure the origin of funds to make them appear to have come from a legitimate source.