The woman injured on set of Transformers 3 last night underwent emergency brain surgery, Radaronline.com has learned exclusively.

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Gabriella Cedillo was rushed to hospital after a stunt went horribly wrong during shooting in Chicago. Now further details have emerged about her condition.

"She had to have brain surgery last night after the accident happened," confirmed a source who works on the set. "We don't know how she is doing now, we’re waiting to hear."

Filming has been shut down on the set, just one day before it was supposed to be completed.

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The 24-year-old extra is not a stuntwoman and was in her own car when the accident happened on Wednesday night.

"The vehicle was being towed by another vehicle," fellow extra Blaine Baker told Chicago station WLS. "The cable between the two vehicles broke. It whipped around and sliced through the woman's car and sliced through her skull, apparently."

He added that the car was then dragged along a center divider for about half a mile, "grinding the side of the car off."

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Police confirmed the incident and issued the following statement:

"Preliminary investigation revealed that shortly before 7 pm, the movie crew was filming a stunt using numerous vehicles and drivers. During this stunt, an object struck a 2006 Toyota, hitting the vehicle, and then went through the windshield hitting the driver."

Cedillo was airlifted to Loyola hospital in Indiana where she was taken into the operating theater.

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The victim's neighbor has spoken out about the aspiring actress, calling her 'quiet and personable.'

"She's not outspoken. She doesn't have to be seen in the neighborhood and she goes about her business," Nate Smith told WLS about his neighbor of 20-years.

Paramount Pictures has not yet released a statement and numerous calls to them have not been returned.

Filming has been shut down on the Transformers 3 set after a stunt went horribly wrong, seriously injuring a female extra.

The extra, Gabriella Cedillo,  is in the hospital, suffering from a  head injury,  after an object crashed through the windscreen of her car while shooting in  the Chicago  area, Radaronline.com has learned.

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The 24-year-old is not a stuntwoman and was in her own car when the accident happened on Wednesday night, according to WLS -TV, the ABC station in Chicago.

"The vehicle was being towed by another vehicle," fellow extra Blaine Baker told the station . "The cable between the two vehicles broke. It whipped around and sliced through the woman's car and sliced through her skull, apparently."

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He added that the car was then dragged along a center divider for about half a mile, "grinding the side of the car off."

Police confirmed the incident and issued a statement.

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"Preliminary investigation revealed that shortly before 7 p.m, the movie crew was filming a stunt using numerous vehicles and drivers. During this stunt, an object struck a 2006 Toyota, hitting the vehicle, and then went through the windshield hitting the driver."

Cedillo was airlifted to Loyola hospital in Indiana where further details of her condition have not been released.

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Filming was set to wrap today, but the incident has halted production.

The victim's neighbor has spoken out about the aspiring actress, calling her 'quiet and personable.'

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"She's not outspoken. She doesn't have to be seen in the neighborhood & she goes about her business," Nate Smith told WLS -TV  about his neighbor of 20-years.

Paramount Pictures has not yet released a statement,  and numerous calls to them from Radaronline.com were not returned.

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