The United States government is seeking to recoup $3.1m from the Grimaldi Group and others after one of the Italian shipowner's conros damaged a jetty in Delaware in 2017.

According to the complaint filed in Delaware federal court Thursday, the 3,370-lane-metre Atlantic Conveyor (built 1985) struck the north jetty in Reedy Point, Delaware, where the Chesapeake and Delaware Canal meets the Delaware River.