The Hamburg customs office said it had examined a suspicious shipping container two weeks ago that came from the Uruguayan capital Montevideo and was bound for the Belgian city of Antwerp.

The container's description said it was loaded with soybeans but authorities instead found 221 black sport bags containing 4,200 packets of pressed cocaine, the office said in a statement.

"This enormous amount represents the largest single seizure of cocaine in Germany," it said, adding that the Hamburg prosecutor's office was investigating who was destined to receive the contents of the container.

"The confiscated cocaine was destroyed under strict and extensive security measures," it added.