The victim of what at this stage appears to be a bizarre "collar bomb" incident is an 18-year-old Sydney High School student named Madeleine Pulver.
Wenona School student Madeleine Pulver is the woman at the centre of the bizarre incident in her Sydney home.
Sydney media reported Wednesday afternoon August 3 2011 that police responded to a phone call about a potential explosive device at a mansion in the wealthy Sydney suburb of Mosman.
Reports said a man wearing a balaclava entered the home and reportedly attached the device to Ms Pulver.
Officials have since spent hours struggling to free Madeleine Pulver from what appears to be a device that is being treated as being very serious.
“It’s a very serious incident where the life of a young lady is potentially at risk and we’re dealing with it in that light," New South Wales assistant commisioner Mark Murdoch told media covering the Madeleine Pulver incident.
The authorities were seeking international help in dealing with the unfamiliar device.
School friends spoke about their friend on Twitter and Facebook.
"Maddie, I'm hoping and praying for you right now," one school friend wrote.
Update: Just after midnight NSW police said Maddie Pulver was released and is safe...