Liquidators of bankrupt private equity firm Abraaj Group are suing to claw back money from a healthcare fund backed by investors including the Bill and Melinda Gates Foundation.

A legal document filed 30 June in the Grand Court of the Cayman Islands demanded that the fund return $109m to benefit Abraaj creditors. Abraaj’s holding company sent the money to the healthcare fund in December 2017 and January 2018, less than six months before the firm filed for insolvency with more than $1bn of debt.