An explosion caused by gas in an apartment building in Astrakhan left a portion of a 9 story building leveled to the ground. The explosion occurred on the lower floors leaving a hole in the building and passers by rushed to help dig out survivors. While digging through the rubble and saving two people, the remaining stories collapsed down around them. Inside is amazing video of the rescuers and the collapse. [via Itar-Tass/LiveLeak]

People giving aid to the victims of the initial explosion.

Just as the camera man above ran away, the building collapsed. Here is a video of the building collapsing from another camera man

And another angle