This frame grab provided by Rostov-on-Don I General company from black and white CCTV footage shows road and behind line of trees fireball, believed to be a plane on fire, crashes to ground at the Rostov-on-Don airport, about 950 kilometers (600 miles) soRelatives of the plane crash victims comfort each other at the Rostov-on-Don airport, about 950 kilometers (600 miles) south of Moscow, Russia Saturday, March 19, 2016. An airliner from Dubai crashed early Saturday while landing in the southern Russian ciA Russian Emergency Situations Ministry employee, right, escorts a group of relatives of the plane crash victims at the Rostov-on-Don airport, about 950 kilometers (600 miles) south of Moscow, Russia Saturday, March 19, 2016. An airliner from Dubai crasheRussian Emergency Situations Ministry employees and police officers are seen as they take a car to drive to the area of a plane crash at the Rostov-on-Don airport, about 950 kilometers (600 miles) south of Moscow, Russia Saturday, March 19, 2016. An airliIn this photo provided by Russian Emergency Situations Ministry, Russian emergency trucks are seen near the area of the plane crash at the Rostov-on-Don airport, about 950 kilometers (600 miles) south of Moscow, Russia Saturday, March 19, 2016. An airlineRelatives of the plane crash victims mourn at the Rostov-on-Don airport, about 950 kilometers (600 miles) south of Moscow, Russia Saturday, March 19, 2016. | APA Russian Emergency Situations Ministry employee, left, tries to comfort a relative of the plane crash victims at the Rostov-on-Don airport, about 950 kilometers (600 miles) south of Moscow, Russia Saturday, March 19, 2016. | AP