‘Transformers 3’ Extra Reportedly Undergoes Brain Surgery

'TRANSFORMERS 3' ACCIDENT: A woman was reportedly injured during a stunt on Wednesday night. Pictured above, a Chicago police officer stands guard in front of a staged car accident on the Michigan Avenue bridge during the filming of the movie Transformers 3 in July. (Scott Olson/Getty Images)

A Transformers 3 movie extra is reportedly undergoing brain surgery after suffering a head injury during a stunt on the film set.

Gabriella Cedillo, 24, had brain surgery after the accident on Wednesday night, according to Radaronline.com.

“She had to have brain surgery last night after the accident happened,” a source told Radar. ”We don’t know how she is doing now, we’re waiting to hear.”

While riding in a 2006 Toyota during a stunt, she was hit by an object that smashed through the windshield.

She was rushed to a local Chicago-area hospital after the incident and further details were not released regarding her condition.

Cedillo is not an official member of the stunt crew and is a movie extra.

“The vehicle was being towed by another vehicle,” movie extra Blaine Baker told Chicago station WLS, according to Radar. “The cable between the two vehicles broke. It whipped around and sliced through the woman’s car and sliced through her skull, apparently.”