The 135 meter long, 8105 dwt reefer cargo ship Nagato Reefer ran aground during the night on the on Shingles Bank.  The vessel was proceeding just west of The Needles off the Isle of Wight in ballast when it grounded.   The Nagato Reefer remained stuck for six hours until it was able to refloat itself.  No reports of injuries, damage or pollution released.