A stretch of the Ohio River near Pittsburgh remained closed to maritime traffic on Monday as crews equipped with sonar looked for a barge believed to have sunk over the weekend—one of more than two dozen barges that broke loose and floated down the rain-swollen river.
The U.S. Coast Guard launched an investigation into how 26 river barges got loose from their moorings late Friday, striking a bridge and smashing a pair of marinas. All but three of the barges were loaded with coal, fertilizer and other dry cargo.
