A former Austrian fund manager is being investigated by prosecutors who believe she was paid more than $40 million to channel billions of dollars of investments to Bernard Madoff, the Wall Street Journal reported.

Prosecutors in the US, UK and Austria believe Sonja Kohn received kickbacks from Madoff while she was a chairwoman of Austrian Bank Medici through separate companies she controlled, the paper said, citing affidavits detailing the investigations and hundreds of documents collected by Austrian prosecutors.