Delays hit the Trans Siberian Railway after 11 carriageways loaded with coal went off the rails. Picture: The Siberian Times
No casualties were reported according to Echo Moscow radio. It is the second such incident recently.
A week ago two people died and more than 20 coal carriages were derailed when a switching engine crashed into a cargo train.
On this occasion the line was blocked for more than 24 hours.
Archeologists discovered a new stone bracelet, two sharp pins, a marble ring and fox tooth pendants.