The subway tunnel between two stations in Moscow developed cracks due to construction issues, and the water droplets leaking from the tunnel ceiling did not receive sufficient attention. As a result, the Moscow River flowed backwards, causing the subway train carrying hundreds of passengers to fall into floods. This not only caused the underground tunnel to collapse, but also destroyed the entire city. security
The subway tunnel between two stations in Moscow developed cracks due to construction issues, and the water droplets leaking from the tunnel ceiling did not receive sufficient attention. As a result, the Moscow River flowed backwards, causing the subway train carrying hundreds of passengers to fall into floods. This not only caused the underground tunnel to collapse, but also destroyed the entire city. security