Investors are preparing to pull roughly half their money from Claren Road Asset Management, the latest blow for Carlyle Group’s hedge fund firm.

Clients of Claren Road have requested nearly $2 billion of their money back from the New York-based firm, Carlyle said in a regulatory filing Monday. The money is scheduled to be paid back after September 30, said a person familiar with the matter. The firm managed about $4.1 billion at the end of July.