News Helicopters Collide in Phoenix, Arizona killing 4

Couple of News Helicopters covering a Police Chase in Phoenix, AZ collided in mid-air and then crashing into the ground at Steele Indian Park located in Phoneix, AZ. Quoting CNN

Federal Aviation Administration spokesman Ian Gregor told The Associated Press that the agency is reviewing air traffic control tapes to see if the helicopters' pilots were communicating before the crash.

"Typically air traffic controllers clear helicopters into an area where they can cover a chase like this," Gregor told AP. "Once they are in the area, the pilots themselves are responsible for keeping themselves separated from other aircraft."

Google Maps view of the crash site.