91.   Several police helicopters flew over the project, looking for the person who might have fired the shots.

92.   So far, the US combat helicopters have flown only training missions.

93.   Stepped-up U.N. and police patrols continued throughout the day, with helicopters flying over the downtown area and armored vehicles cruising the streets in a show of force.

94.   Stepped-up United Nations and police patrols continued throughout the day, with helicopters flying over the downtown and armored vehicles cruising the streets.

95.   Television vans jammed their street and helicopters flew overhead.

96.   Ten minutes after picking up the girl, the helicopter was flying south when, for unknown reasons, a tail rotor broke off.

97.   The Army helicopters can fly several hundred miles after refueling.

98.   The authorities said the helicopters were not flying too low.

99.   The gunfire, marked by heavier explosions, continued an hour later, as Russian military helicopters flew overhead.

100.   The helicopter was flying in support of US Rangers who parachuted onto an airfield outside Kandahar on an intelligence-gathering mission.