WASHINGTON (VINnews) — An investigation has identified 890 accounts at Swiss bank Credit Suisse with potential links to the Nazi regime, U.S. Senator Chuck Grassley said ahead of a Judiciary Committee hearing Tuesday on banks’ facilitation of Holocaust-era activities.

The accounts included previously undisclosed wartime holdings for the German Foreign Office, a German arms manufacturer, the German Red Cross, and the paramilitary organization SS, Grassley said. New details also emerged on a scheme to help Nazis flee to Argentina after World War II.

Grassley, a Republican who chairs the Judiciary Committee, has been investigating Credit Suisse’s role during the Holocaust for years. “The SS’s economic arm maintained an account at Credit Suisse, and the bank’s relationships with Nazi organizations were more extensive than previously known,” he said.

UBS Group, which acquired Credit Suisse in an emergency takeover in 2023, said it is cooperating with a review conducted by former U.S. prosecutor Neil Barofsky to document the scope of Nazi-linked accounts. UBS executives said the investigation is a voluntary effort to provide transparency and closure.

“We approach today’s topic with solemn respect,” Robert Karofsky, president of UBS Americas, said in prepared testimony. “Our priority is to complete this review so that the world can benefit from the findings in the coming final report.”

The investigation is expected to conclude by early summer, with a final report due by year-end, according to Senate Judiciary aides.

Credit Suisse and UBS previously reached a global settlement in 1999 over Holocaust-era claims. Both banks have apologized for their roles during World War II and acknowledged the dark period in Swiss banking history.

Grassley said the new findings highlight gaps in the historical record, with implications for understanding financial support networks of the Nazi regime and the broader efforts to account for victims and collaborators.