Part of an oil pipeline in Russia\'s North Caucasus republic of Ingushetia was damaged early Tuesday in a suspected terrorist attack. Two explosions went off simultaneously, causing an oil spill and fire, local police said. \"[Suspected] criminals planted two powerful hollow-charge devices on the pipeline, and both detonated almost simultaneously,\" a police spokesman said, adding that it took firefighters three hours to extinguish a 20-meter-high pillar of fire near the village of Voznesenskaya. He said authorities have opened a criminal case in the matter, which investigators consider a terrorist attack. In late January, two blasts on pipelines running through southern Russia cut gas supplies to Georgia and Armenia, and an explosion hit a high-voltage electricity transmission tower near the city of Karachayevsk in Russia\'s North Caucasus, causing blackouts in much of Georgia. (RIA Novosti)