On August, 2000, at around 12, at around 1 1 25, according to the order of the Northern Fleet Command, the nuclear submarine Kursk, which participated in the exercise, was ready to launch a torpedo. At that time, the commander and most of the officers and men were concentrated in 1 and 2 cars. 1 1: 28, due to the torpedo accident, with a loud noise, TNT explosive with energy equivalent to 100 kg exploded in the boat. In an instant, 1 and No.2 cars became a sea of fire, and all the occupants of the launching position died. 1 1 hour 30 minutes 15 seconds, the second explosion occurred in the boat, and the energy was equivalent to 1000 kg of TNT explosive. The fire caused by the explosion caused the temperature in the ship to rise continuously, reaching 8000 degrees Celsius at the highest, and many high-temperature resistant materials melted. Due to the serious deformation of the submarine caused by the explosion, various parts in the submarine fell off one after another. At this time, seawater also poured into the ship along the hole blown out of the 1 carriage. When the explosion happened, some officers and men were resting in the fourth and fifth carriages. They suffered a disaster before they could make any preparations. Some people died in their sleep, and some people wore protective masks, but they could not evacuate to the stern cabin because the passage was blocked.
After the explosion, 23 officers and men were still alive in cars 7, 8 and 9, but some of them were burnt. 13: 08, 15: 00, they braved the thick smoke, waded into the sea and evacuated to the ninth carriage. They tried to open the lid of the rescue capsule, but failed. At this point, they have realized that "no one can escape." So, someone began to write a suicide note. Warrant Officer Bao Lisov wrote a suicide note and put it in a sealed bottle. In his suicide note to his new wife Olga, Captain Kolesnikov also gave a rough description of what happened inside the ship. At first, Kolesnikov's handwriting was clear in the light of the ship. After another half an hour, the power stopped and the ship was in darkness.
The air is getting less and less and the sea water is getting higher and higher. Kolesnikov wrote a few more vague words in the dark and put the note in his coat pocket. By seven or eight o'clock in the evening, the air in the boat was exhausted and 23 officers and men died of suffocation.
By the time the Northern Fleet Command found that the situation of the nuclear submarine Kursk was abnormal and sent a rescue team to the accident area, the nuclear submarine Kursk had sunk into the Barents Sea 108 meters. 1 1 1 crew, five officers of the 7th nuclear submarine division and two engineers of the diesel engine factory were all killed.