21.   Dozens of ambulances rushed to the scene, but rescuers had difficulty reaching survivors because of the uneven terrain and mud.

22.   Earlier in the day, rescuers had to nudge him off a sand bank, where he became stuck for several hours.

23.   Farmer Pablo Emilio Marcillo said the fog was so thick, the rescuers had trouble seeing one another.

24.   He said rescuers had to be shuttled to the site by an American helicopter.

25.   He said rescuers would have only a brief opportunity Thursday morning to get the crew to safety before another storm moved into the area Thursday afternoon.

26.   However, the cars were damaged enough that rescuers had to pry passengers from the wreckage.

27.   In addition to recovering remains, rescuers had, as of Monday, saved ten people who were sent to hospital.

28.   Many bodies were so badly burned that they stuck to each other so rescuers had to be careful to avoid dismembering the remains.

29.   Many of the bodies were so badly burned that they stuck to each other so that rescuers had to be careful to avoid dismembering the remains.

30.   Many bodies were so badly burned they stuck to each other, so rescuers had to be careful to avoid dismembering the remains.