Deutsche Bank AG was sued by the two men it fired for their alleged role in a spying affair, people familiar with the matter said.

Wolfram Schmitt, the former head of investor relations, filed suit in the Frankfurt labor court, said two people who declined to be identified because they were not permitted to discuss the matter publicly. Rafael Schenz, the former German head of corporate security, also sued, alleging improper dismissal, one of the people said.

Deutsche Bank said on July 22 that an investigation had found four cases in which privacy laws may have been violated by its surveillance activities, citing a report by the Cleary, Gottlieb, Steen & Hamilton law firm that it had hired. The company said at the time it had fired the two men for their alleged involvement in the events.

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