The 4190 dwt tanker Volgoneft 231 went aground on the Volga River in the Volgograd Basin.  The Volgoneft 231 was en route to Kavkaz from Samara with 4311 tons of fuel oil when it grounded in the basin.  No reports of injuries, damage or pollution released. The Volgoneft 231 was refloated the following day assisted by the tanker Volgoneft 141.