Police say it is lucky no-one was killed during a rampage by two hunting dogs in southern New South Wales.
The staghound cross dogs attacked five people in Wagga Wagga during a 30-minute frenzy on Christmas Eve.
Inspector Jeff Barr says a 49-year-old woman suffered the most serious injuries, and was transferred to Canberra for surgery.
"The woman was attacked from behind. She was pulled off a motorcycle and dragged some 10 metres around the back of a motor vehicle," Inspector Barr said.
"Her son, being alerted by her screams, came out and put himself between the dog and his mother. He sustained some injuries there and ended up wrestling with the dog.
"The dog was very violent, very hostile, very aggressive. Police had no choice and, assisted by the young man, the dog was actually destroyed."
Earlier the dogs had attacked a cyclist then a man and his small dog.
Inspector Barr praised the bravery of a young woman who came to the man's aid and was also attacked.
He says police have now tracked down the dogs' owner, who is out of town.
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