IMF says Deutsche Bank's global links make it biggest potential risk

The IMF compared possible threats to financial stability stemming from globally systemically important banks, known as "G-SIBs", in a review of Germany's banking and insurance sector.

"Among the G-SIBs, Deutsche Bank appears to be the most important net contributor to systemic risks, followed by HSBC and Credit Suisse ," the fund said.

Global regulators have tried to make such banks more robust following the financial crisis to limit the impact of a bank collapse such as the implosion of U.S. firm Lehman Brothers.

"The relative importance of Deutsche Bank underscores the importance of risk management, intense supervision of G-SIBs and the close monitoring of their cross-border exposures," the IMF said, adding it was also important to quickly put in place measures for winding down troubled banks.

Germany's largest lender declined to comment on the report.

Its shares fell by nearly 5 percent earlier on Thursday after the U.S. Federal Reserve said it was one of only two lenders to have failed an annual test of financial resilience in hypothetical stress scenarios.

(Reporting by Jonathan Gould; Editing by Alexander Smith)