41.   Aftershocks, some of them sizable earthquakes in their own right, continued Monday, threatening to cause more landslides and preventing rescue workers from removing the debris.

42.   Bad weather prevented rescue workers from recovering the bodies.

43.   Bewildering conditions imposed by rebel Muslims have prevented aid workers from feeding thousands of hungry civilians in northwest Bosnia, U.N. officials said Tuesday.

44.   But officials said a severe snow storm was preventing rescue workers from finding them.

45.   But Yap said harsh weather prevented the workers from moving Friday.

46.   Earlier, fears of triggering another cave-in had prevented workers from digging their way in through the tunnel itself.

47.   Federal forces have kept the city sealed off since Saturday, stopping people from fleeing the fighting and preventing relief workers from entering.

48.   Fighting and bad weather have prevented aid workers from getting vaccines into the areas.

49.   Federal forces have kept it sealed off since Saturday, stopping people from fleeing the fighting and preventing relief workers from entering.

50.   He said the factory dormitory was locked to prevent workers from stealing at night.