Coast Guard crews responded to a sunken tug boat in the St. Mary's River Monday morning.
According to the Coast Guard, a search and rescue controller was contacted by the crew of the tug Bill Maier around 3:30 a.m. Monday. The Bill Maier was towing three barges and the tug the Hammond Bay when the crew lost sight of the tug boat.
After securing the barges, the crew attempted to locate the missing tug and reporter finding an oil sheen and life ring from the tug, which led them to believe the boat had sunk.
Crews say there was no one aboard the Hammond Bay at the time it sunk.
It was found under 27 feet of water in the middle of the St. Mary's River. The boat reportedly had 200 gallons of diesel fuel and 15 gallons of oil aboard.
The Coast Guard says they are working with the Army Corps to minimize any environmental damage and impact to the waterways.
All boating traffic is advised to stay clear of the area.