Twenty-six barges loaded mostly with dry cargo broke loose from a Pittsburgh marina late Friday night and floated uncontrollably down the Ohio River, causing extensive damage to neighboring docks according to officials.

The barges, which broke away from a vessel at the first mile marker, have all been accounted for but caused a substantial amount of damage to Peggy’s Marina. A spokesperson for the U.S. Coast Guard said 23 of the barges were loaded with nonhazardous dry cargo including coal,…