"Similar case took place in 1984 in Turkestan Military District. Near the city of Astrakhan air-defense system marked the ball-shaped object flying at the altitude of 2000 meters along the Caspian seashore in the direction of the state border. The object did not respond to the inquiry made by the military on the radio. Two fighter-planes took off, but they were unable to bring the object down. After being under fire, the object descended up to 100 meters, and at this low altitude the planes were unable to continue firing. Despite being fired at, the object was having a regular speed. The ball passed over several military units, which allowed to make its photo. Near the city of Krasnoyarsk the military tried to bring the object down with the helicopter. However, it quickly increased its altitude so that the helicopter could not reach it. After firing all its supply of shells, the helicopter landed, and the ball abruptly flew in the direction of the sea and disappeared from the radar screens."