Updated from 3:21 p.m. ET
is reportedly under investigation by prosecutors in Germany for the suspected online auction of copies of Adolf Hitler's
, which is banned in the country.
Shares of the company slid last week after a French court ordered Yahoo to bar French users from auction sites selling Nazi memorabilia.
A spokeswoman from Yahoo's German unit said the company "took away the items as soon as they were notified" and added that she doesn't expect the preliminary investigation to become a court case.