Two Cayman Islands-based funds controlled by Platinum Partners, a hedge fund caught up in a federal fraud probe, filed for bankruptcy Tuesday in Manhattan.

Matthew Wright, a lawyer with RHSW Caribbean, a liquidator appointed by a Cayman Islands court, and his colleague Christopher Kennedy filed the Chapter 15 petition to protect Platinum’s U.S. assets amid investigations by the U.S. Department of Justice and U.S. Securities and Exchange Commission.