31.   It did not say how many helicopters have been shot down.

32.   --Maybe the helicopter was shot down as it took off after the pilots landed and realized they were in the wrong place.

33.   Neighbors told reporters they heard gunshots before the crash, but Ramirez discounted the idea the helicopter was shot down.

34.   News reports said the rebels downed the sophisticated chopper, but the army denied the helicopter was shot down, saying its tail rammed the ground.

35.   Rebels claimed to have shot the helicopter down, but the Zimbabwean government said the crash was due to bad weather.

36.   The administration has said it does not know for certain whether the helicopter was shot down or made a forced landing.

37.   The Bosnian foreign minister, killed when his helicopter was shot down, was buried in his native city of Bihac on Thursday.

38.   The Dagestani government said four Russian pilots were killed Tuesday when their helicopters were shot down over Botlkikh.

39.   The increased security followed major rebel attacks Monday in which a helicopter was shot down over Grozny, killing two generals and eight other senior officers.

40.   The helicopter was shot down after crossing the heavily armed Demilitarized Zone, it said, adding that North Korean officials were investigating the illegal intrusion.