The 120,000 gt, 360 meter long boxship MSC Luciana went aground on a sandbank in the Westerschelde after leaving Antwerp, Belgium.   Initial attempts to free the boxship failed, but tugs were able to release the vessel with the rising tide.  The MSC Luciana proceeded to Zeebrugge for inspection.  No reports of injuries or pollution being released.   The boxship had 7,000 containers on board at the time of the grounding.