Watchstanders with Coast Guard Sector Lower Mississippi River command center received a notification of a collision between the towing vessels Margaret Ann and the William Strait at mile marker 727 on the Lower Mississippi River. The William Straight sank in 20 feet of water.
A Coast Guard 25-foot small boat crew from the Sector Lower Mississippi River along with an HC-144 Ocean Sentry fixed-wing aircraft from Coast Guard Aviation Training Center Mobile, Alabama and local pollution response agencies are on scene responding.
A safety zone has been established from mile markers 726 to 728.
The Coast Guard is investigating the cause of the incident.