FRANKFURT (Reuters) - Four of the five Deutsche Bank
One Deutsche Bank employee was allowed home on health grounds, the prosecutor said.
The employees were arrested during raids on Germany's flagship lender on Wednesday.
It is too early to conclude whether the raids, by 500 tax inspectors, police and prosecutors, would yield any new evidence, Frankfurt prosecutor Guenter Wittig said, adding, "This will take months. I cannot comment about an ongoing investigation."
The prosecutor's probe is focused on tax evasion linked to tax credits and a scheme involving the trading of carbon permits. As a result of the scheme, Deutsche Bank's 2009 tax return needed to be adjusted.
Deutsche Bank has said it voluntarily corrected its 2009 tax return, but noted that authorities disagreed over whether this had been done in a timely fashion.
It declined to comment further on Thursday.
On Wednesday prosecutors said they were investigating 25 bank staff on suspicion of severe tax evasion, money laundering and obstruction of justice, and searched the bank's headquarters and other premises in Berlin and Duesseldorf.
The investigations included probing the role of Deutsche Bank co-chief executive Juergen Fitschen and Chief Financial Officer Stefan Krause.
(Reporting By Kathrin Jones and Edward Taylor; Additional reporting by Philipp Halstrick; Editing by Hans-Juergen Peters and Elaine Hardcastle)