More than 95% of Ground Zero workers agreed to accept a settlement of long-running litigation over respiratory diseases and other injuries suffered in recovery operations following the Sept. 11, 2001, terrorist attack.

A report released Friday said 95.1% of 10,563 eligible plaintiffs agreed to settlement payments of at least $625 million and possibly as much as $815 million. Approval by least 95% of the workers was needed under the settlement terms.

"We...