In this image, made from television , what Russian Channel 1 claims, a convoy of Russian tanks moving towards Tskhinvali in the South Ossetian enclave in Georgia on Friday, Aug. 8, 2008. Russia's Defense Ministry says it has sent reinforcements to its peacekeepers deployed to South Ossetia to help end bloodshed. Georgian officials confirmed that the Russian convoy had crossed the border and was advancing toward Tskhinvali. Georgia launched a massive attack Friday to regain control over South Ossetia, using heavy artillery, aircraft and armor. South Ossetian officials said at least 15 people were killed Friday and an unspecified number were wounded.