Prosecutors are investigating four police officers in Frankfurt on suspicion of organizing a neo-Nazi cell after they allegedly accessed confidential data on a prominent Turkish-German lawyer and used it to threaten to murder her baby.

Five police officers have been suspended from duty as prosecutors continue their probe into allegations that the officers incited racial hatred and shared illegal Nazi imagery.

The investigation was sparked after Seda Basay-Yildiz, a solicitor known for representing victims of neo-Nazi violence, reported a chilling death threat against her two-year-old daughter, the Frankfurter Neue Presse newspaper reports.

Ms Basay-Yildiz received a fax in August in which a group calling themselves “NSU 2.0” threatened to murder her child.

The name refers to the National Socialist Underground (NSU), a trio of neo-Nazis who murdered Turkish immigrants before being caught a decade ago.

The fax named Ms Basay-Yildiz’s daughter and stated their full home address. Ms Basay-Yildiz told the newspaper that she is used to receiving death threats from far-Right extremists and normally ignores them but “this time it went too far.”