Navy investigators have recommended scrapping the fire-damaged submarine USS Bonefish because it would cost more than $100 million to repair, a newspaper reported.

Three sailors were killed and 23 injured in April when the diesel-powered vessel caught fire off the Florida coast.A report to Adm. Frank B. Kelso, commander of the Norfolk-based Atlantic Fleet, suggests scrapping the 30-year-old sub but does not suggest how to do it.