Germany's biggest bank was searched by German prosecutors on Tuesday as part of an investigation in securities transactions by clients.
Shares of Deutsche Bank traded down as much as 2.7 percent after it confirmed its offices were under investigation.
"Today, offices of Deutsche Bank are being searched by the Wiesbaden prosecutor's office. The search is related to an investigation into securities transactions by clients. Employees of the bank are not accused of wrongdoing," a spokesperson for the bank said.