By Frederik Pleitgen, CNN

December 8, 2011

Investigators in Germany are examining a bomb sent to Deutsche Bank executive Josef Ackermann

Berlin (CNN) -- A suspicious package sent to the chief executive of Deutsche Bank in Germany contained a functioning bomb, law enforcement officials in the state of Hesse announced Thursday.
The package addressed to Josef Ackermann, the bank's top executive, in Frankfurt, Germany, was intercepted Wednesday, police in New York said earlier.
Criminal investigators in Germany are pursuing the case, they said in a statement Thursday.
The device, which contained shrapnel, was detected in the bank's mail room around 1 p.m. local time, said New York Deputy Police Commissioner Paul Browne.

It did not detonate.

"The return address was listed as a European central bank, which would likely increase the chances of him opening it," said Browne, who urged a general increase in mail room security.
"A suspicious letter was received today at Deutsche Bank, addressed to Dr. (Josef) Ackermann," bank spokesman Ronald Weichert said Wednesday. "In-house departments concerned alerted the police," who then launched an investigation.
Browne said the incident prompted New York authorities to increase security around Manhattan's Deutsche Bank offices.