On March 18, 1985, Soviet airplanes and tanks with other fighting vehicles attacked Spin Khola village, Achin district, Nangarhar province. First, they dropped their commando soldiers from the helicopters around the Spina village of Achin district and then their land forces entered the village. The residents of the village, including men, women, and children, went into a cave called Haji Gul Rahman cave to protect themselves. At 5:00 pm the Soviet forces brought a big metal balloon down. Then they put that near the mouth of cave and by shooting from a weapon they spread the gas into the cave. When they came out some Russian soldiers were waiting for them and they threw a packet of tablets into the bucket of water and gave it to the people. People who drank this water recovered but those who didn't get out the cave all died. Totally there were 100 people in the cave. 52 people died and 48 people who drank the water were alive.