11.   City crews said the leak could not be stopped until the fire was extinguished, hazardous materials had been removed and the tunnel walls had been certified safe.

12.   His cab remained pinned between the other truck and the tunnel wall.

13.   Police officer Elmer Pacheco said the prospectors apparently were exploding dynamite to break gold ore from a tunnel wall when a wooden post gave way, causing the cave-in.

14.   The other driver, who escaped, told reporters the truck veered across from the lane opposite and crashed head-on with his vehicle before hitting the tunnel wall.

15.   The other driver, who escaped, told reporters the truck veered across from the opposite lane and crashed head-on with his vehicle before hitting the tunnel wall.

16.   The tunnel wall and a tool shed were damaged, Graversen said.

17.   There also was danger that sections of concrete, loosened by intense heat, could fall from the tunnel walls and ceiling.

18.   They assumed that he had been trapped in his truck, pinned between a second truck and the tunnel wall.

19.   To humans, these abandoned mines represent an injury waiting to happen because of their collapsing tunnel walls and leftover toxic gases.

20.   Within seconds the car hit a curb, slammed into a concrete post, spun and hit the tunnel wall, crumpling in a mass of twisted steel.