Flames engulf Moscow skyscraper - World - ITN.co.uk Moscow's Federation Tower, which is set to be the tallest building in Europe once it is completed, caught fire on Monday evening. Russian television have reported the fire broke out on the 66th and 67th floors, with flames spreading through construction material and thermal insulation. While firefighting helicopters were used to put out the flames, workers were evacuated from the building, and no injuries were reported. The Federation Tower, designed to be 93 floors high, is due to be finished next year.