welcome back. we are covering this fertilizer explosion. just a massive situation in west, texas. we got some pictures now of a mushroom cloud, new pictures. take a look at this. that is the massive, massive mushroom cloud the mayor described earlier on the telephone. >> this is tommy musca you're about to hear. he is also a volunteer firefighter who says he was on his way to fight a fire that occurred at this chemical plant when it exploded. >> what i do know is approximately 6:30 there was a fire at the fertilizer plant on jerry marshall drive, north of the city of west. approximately 7:00 that plant exploded. the explosion propelled in a