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http://www.news.com.au/national/bomb...-1226107604460
AN 18-year-old teenage girl is "absolutely petrified after having what a senior police officer described as a "collar bomb" strapped to her neck.
"We don't know what we are dealing with...we are working very hard to find out exactly what it is, and equally important, what it isn't," Mr Murdoch said.
He said the girl was extremely calm despite the ordeal, with specialist officers with her.
Assistant police commissioner Mark Murdoch described the situation as a "very serious and sensitive matter".
"We are still treating the suspicious package as live," he said.
"I can't confirm whether it is strapped to the woman involved but she is still in the vicinity of the device."
When asked whether the girl could move away from the bomb, Mr Murdoch said: "No, she can't get away from it."
Police believe the ransom note is attached to her neck but bomb experts have been unable at this point to read its contents.
The street is home to racing identity Gai Waterhouse, ex-Wallaby Phil Kearns and John Eales.
Police cordoned off the house and a command post has been set-up on the corner of Burrawong Ave and David Street.
Police Bomb Squad officers are currently examining the device, while other emergency services are in support at the scene with the teen's parents.