12/07/2011 07:52 EST | Updated 02/06/2012 05:12 EST

Suspicious delivery for Deutsche Bank CEO Ackermann intercepted, German police investigating

FRANKFURT - Police are investigating what they described as a "suspicious delivery" addressed to Deutsche Bank chief executive Josef Ackermann, the bank said Wednesday.

Deutsche Bank spokesman Klaus Winker said police were alerted when the package was detected in the mailroom of the bank's headquarters among the cluster of skyscrapers that make up downtown Frankfurt am Main.

Frankfurt police confirmed a "suspicious item" was found among incoming mail at the headquarters around midday Wednesday, but refused to give any further details pending the outcome of an investigation into the package's contents.

Winker also declined to describe what was sent or to provide further information.

The New York Police Department said it knew about the scare. Spokesman Paul Browne said the NYPD received information early Wednesday that a letter bomb addressed to Ackermann had been detected by X-ray screening in the mail room. He wouldn't say where the information came from but said it was "reliable."

He added that the European Central Bank