Deutsche Bank AG (USA)(NYSE:DB) shares traded to their lowest level in more than a year in U.S. action Thursday after the German investment bank warned the continuing probe by global regulators into alleged manipulation of currency rates could have a “material” affect on its results. 

DB traded down to $38.94, its lowest since April 2013, and it remains off about 3% in afternoon trading, at $39.20. 

Deutsche has suspended five traders located in the Americas as part of an internal investigation into whether foreign exchange markets were manipulated, while other employees have received other disciplinary measures. 

The probe does not stop with Deutsche. At least 34 staff at 12 banks and the Bank of England have been suspended, placed on leave, or fired as part of the global investigations by lenders and regulators into possible rate-rigging, the Financial Times said.