According to preliminary data, seven athletes performed free fall from 4 thousand to 1,6 thousand meters. After completing the exercise, they began to open the parachutes. At this moment, one athlete flew into the already opened parachute of the second. As a result of the blow, both lost consciousness and descended in a spare parachute. As a result of the injuries received, one died in the ambulance carriage, the second - a few hours later in the hospital. According to the workers of the flying club, both had considerable experience in jumping - at least 600 for each.