At least seven days will be required to repair the Kavkasioni high-voltage electric power line, damaged by an explosion at 1:30 p.m., Sunday, Unified Energy System of Russia\'s spokesman Margarita Nagoga told Interfax. The blast damaged a stretch across the Kuban River which will complicate the repair effort. The blown up pylon will have to be replaced, she said. Repair work has begun and the electric power line is being examined, she added. The Kavkasioni electric power line delivers Russian electricity to Georgia. After the explosion Russia switched to a line running across Abkhazia. The press service of Russia\'s Southern Emergency Situations Center told Interfax on Sunday that the power line was blown up outside Karachayevsk in Russia\'s internal republic of Karachayevo-Cherkessia. \"The electric power line, which is used to deliver electricity to Georgia, was blown up at 11:50 a.m., not far from Karachayevsk,\" the center reported. Emergency Situations Ministry experts and repair teams are working to restore electricity supplies. (Interfax)