Volgograd is between the Black Sea and the Caspian Sea .

It was once called Stalingrad and perhaps is better know to people as the scene for the film "Enemy at the Gates"

 

The video below shows the "black widow" suicide bomber enter the train station just before the explosion.

Carrying a bag over her left shoulder, the weight of the contents make them selves apparent as the woman seemingly struggles to climb the staircase.

 

 

the Video below shows a edited close up of the explosion