The U.S. Justice Department started a long-delayed distribution to victims of Bernard Madoff's Ponzi scheme, tapping a $4 billion fund created through settlements with some of the con man's oldest customers and his bank, JPMorgan Chase & Co.

The Madoff Victim Fund will return $772.5 million to more than 24,000 victims worldwide, the first in a series of distributions. The payouts will eventually become the largest of forfeited funds in the history of the Justice Department's victim-compensation program, the agency said Thursday in a statement.

Almost nine years after Madoff's arrest, investors are still trying to recover money from a fraud that erased $17.5 billion in principal and more than $40 billion in fake profits that victims believed was held in their accounts. Some have recovered more than $10 billion from another fund overseen in bankruptcy court through a separate process.