NEW ORLEANS - The Coast Guard is responding to a report of a 35 barge breakaway near Caruthersville, Mo., Tuesday.Watchstanders at Coast Guard Sector Lower Mississippi were notified that the towing vessel Joe Bobzien reported grounding and having 35 loaded dry cargo barges break away from the vessel at 4:30 a.m., Tuesday.The river is restricted to all traffic, except assist vessels, from mile marker 864 to 834.ACL Transportation Services is deploying two vessels to assist.The cause of the incident is under investigation.