11.   The rescuers used equipment such as concrete-cutting saws and fiberoptic cameras that peer through crevasses in the ruins.

12.   To keep them from repeatedly covering the same ground, rescuers used radio transmitters linked to satellites to map the terrain.

13.   Unable to take ambulances into the rural area, rescuers used pickup trucks to load the injured, and later the dead.

14.   Unable to take ambulances into the rural area, rescuers used pickups to load the injured, and later the dead.

15.   By evening, rescuers were using heavy machinery to remove the rubble in hopes of finding four missing people.

16.   Chen said rescuers were using large cranes mounted on barges to lift pieces of twisted metal roofing and wooden beams.

17.   Dean Meadows, Wyoming County emergency services director, said rescuers used boats to reach a number of people trapped in floating mobile homes.

18.   Divers were unable to get into the cave until late Thursday, after rescuers used explosives to widen its entrance.

19.   Dr. Mark Griffin, who treated the pilots in the local emergency room, said the rescuers had used hand-held fire extinguishers and entered the flaming jet.

20.   Exhausted rescuers used trained dogs to find survivors still buried in the ruins, but hopes faded of finding anyone still alive buried in the rubble.