Swiss bank Credit Suisse (CS) - Get Report is being investigated again for tax evasion and money laundering, following a tip to Dutch prosecutors about tens of thousands of suspect accounts, Reuters reports. The tip triggered raids in five countries, which began on Thursday.

There have been two arrests so far.

Prosecutors said they are "investigating dozens of people who are suspected of tax fraud and money laundering," Reuters added. Suspects are said to have deposited money in a Swiss Bank without disclosing to the proper authorities.

Dutch and British authorities did not disclose the name of the "global financial institution" they are investigating, but Credit Suisse said authorities had visited its offices in Amsterdam, London, and Paris over tax matters, Reuters noted.

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