1.   Bloodied survivors picked their way through the remains of bodies torn apart by the blast, he said.

2.   Bloodied survivors fled screaming, although authorities said many who were able returned, distraught and not knowing what else to do.

3.   Some bloodied survivors were sitting next to the tracks screaming.

4.   Witnesses said some victims were mutilated by the explosion, and some bloodied survivors walked around in a daze before emergency crews arrived.

5.   Bloodied survivors crawled from the rubble, while others had to be pulled out.