Under-Construction Moscow Tower Ablaze - ABC News Firefighting helicopters are trying to put out a spectacular blaze atop an under-construction Moscow skyscraper, planned to be Europe's tallest building. Orange flames were leaping about 250 meters (880 feet) Monday, visible in the night sky to much of the city. Smoke and flame rises from the top of the "Federation" tower of the Moscow City business compound in downtown Moscow, Monday, April 2, 2012. AP Photo/Sergey Ponomarev No injuries have been reported at the fire in the eastern tower of the Federation Tower complex, part of a massive development along the Moscow River about 2.5 kilometers (1.5 miles) west of the Kremlin. The cause of the fire was not immediately determined. The tower, when completed, is to be 360 meters (1150 feet) tall.