A mine car derailed, knocking down timbers and the electric trolley cable causing sparks, igniting coal dust in the mine.
The following sparks ignited coal dust in the mine. A mine car derailed knocking down timbers and the electric trolley cable.
A mine car derailed knocking down timbers and the electric trolley cable. The following sparks ignited coal dust in the mine.
A mine car derailed knocking down timbers and the electric trolley cable. The following sparks ignited coal dust in the mine.