BOMB disposal officers are on their way to the scene of a auto fire on the road between Bangor and Belfast.
There had been speculation of the identity of the driver of the auto, however, sources said the woman - who was uninjured in the fire - was not a serving police officer.
A vehicle fire in Co Down which sparked a security alert and led to claims of a terrorist attack was the result of a mechanical fault, police have confirmed.
The Army bomb squad have been called to the scene.
"Thankfully she wasn't in it at the time the vehicle went on fire".
Police said: 'Shortly before 8.30am police received a report that a auto had caught fire at the junction of Ballyrobert Road.
Security sources told Sky News that a partially exploded booby trap bomb caused the blaze.More news: Pari First Weekend Collection: Anushka Sharma's Film Struggled For Big Numbers
Suspected Under auto booby trap device.
However, the incident is no longer believed to be sinister in nature.
'My concern is for the officer and her family'.
He said: 'Terrorism can never be allowed to prevail.
"If so that's a huge relief and I hope those involved are uninjured".
"The main A2 remains closed at this time while the investigation into the circumstances of the incident continue".