The Dzuarikau–Tskhinvali gas pipeline from North Ossetia to Tskhinvali was launched on 26 August 2009. The new pipeline was reported to have cost 15 billion rubles (US$476 million). Before the construction, South Ossetia was supplied by gas through the Agara-Tskhinvali leg of the Georgian Tbilisi-Kutaisi trunk system.[11] Dzuarikau-Tskhinvali gas pipeline is one of the highest-altitude pipelines in the world.[12]