Authorities say six Pasadena officers have minor injuries after two police helicopters collided over a helipad Saturday in the Los Angeles area.
Police Lt. Phlunte Riddle says a chopper that was landing came into contact with one that was taking off.
The collision caused the rotor blade of one of the helicopters to fall off and its tail to break.
The injured were taken to hospitals for further evaluation after the 4 p.m. collision in Altadena.
Riddle says they included a pilot and an observer in each of the Bell OH-58A helicopters and two officers on the ground.
FAA spokesman Allen Kenitzer says his agency and the NTSB will investigate.