German investigators have uncovered significant data linked to offshore bank accounts in tax haven Liechtenstein that could see rich and prominent Germans embroiled in tax evasion scandals.

The probes centres on bank accounts held by Germans at bank LGT Treuhand, an independent unit of LGT Group, which has been managed by the Princely House of Liechtenstein for over 70 years.

The news follows police raids on the home and offices of Klaus Zumwinkel, the chief executive of Deutsche Post AG and a respected businessman in Germany's corporate world, on Thursday in a probe into suspected tax evasion, Reuters reported.