New Zealand police gunned down a young security dog at the Auckland Airport on Friday after it was escaped its handler and ran loose for more than three hours on the tarmac, delaying 16 flights.
The extreme action of NZ police have come under criticism for not letting the dog tranquilized instead of killing it.
Named Grizz, the dog was being trained to detect explosives by New Zealand's Aviation Security Service and was about six months from graduating.
Police Inspector Tracy Phillips said in a statement that the security service and airport staff had made considerable efforts over several hours to recapture the dog and had called in police as a last resort.
Radio New Zealand said the 10-month-old bearded collie and German short-haired pointer cross had run from its handler when it was being loaded into a van and slipped through a security gate when it was opened to let a truck through.
Airport staff unsuccessfully used toys, other dogs, food and a range of handlers to try to coax the dog away from the tarmac.