(Reuters) - The U.S. Coast Guard said it halted navigation on the flood-swollen lower Ohio River near Golconda, Illinois, on Thursday after a tow boat sank near river mile marker 897.5 and drifted downriver.
The key grain shipping waterway was closed from mile marker 896.5 to 900 as a precaution until the sunken vessel, which is believed to be carrying 3,000 gallons of fuel oil, is located.
No injuries were reported and the cause of the sinking is unclear.
(Reporting by Karl Plume in Chicago)
