A police helicopter was forced to take emergency action during a terrifying encounter with mysterious high-speed 'drones' over a US air base last year - in an incident officials would later dismiss as ...

San Diego Police say helicopters are almost always flying over city airspace and can be used to support policing any crime.

Add Yahoo as a preferred source to see more of our stories on Google. A police helicopter crashed Wednesday night, killing two people aboard, as authorities responded to an "active shooter," who was ...

FLAGSTAFF, Ariz. — Two members of the Arizona Department of Public Safety were killed when the helicopter they were aboard crashed as it was providing air support during an active shooter incident, ...