California authorities are appealing for information from the public after a woman was impaled in the leg by a metal bar that allegedly fell from a big rig in Sacramento.

The victim, who has not been identified, was sitting in the right front passenger seat of a white Chevrolet Impala at the time of the incident, which occurred on Saturday at roughly 10 a.m. as the car was traveling northbound on State Route 99, south of Fruitridge Road.

Preliminary investigation indicates a “large metal bar” fell from the big rig and landed on the road, before bouncing up and entering the front of the car, KCRA reported.

Describing the case as an “unusual incident,” officials with the California Highway Patrol South Sacramento division said over the weekend that the metal bar blasted through the engine compartment and into the passenger area before impaling the woman’s right leg.

The driver of the Chevrolet Impala, also unnamed, exited the freeway and called 911. The big rig did not stop during the incident and continued to travel on northbound SR-99, officials said. The victim was transported to a local hospital and is currently in a stable condition.

“Officers from the South Sacramento area and personnel from the Sacramento Fire Department responded to the scene to render aid,” California Highway Patrol said.

“If anybody witnessed this incident and has information regarding the location of big rig, please contact Officer Jim Young at (916) 681-2300 or by email at [email protected]” The division released photos from the scene to social media, including one where the victim’s wound was disguised with a “scream” emoji.

In the part-censored photo, the bar can be seen poking through the front of the Impala and straight into the woman’s leg, which had been restrained with a tourniquet by first responders. A drip also appeared to have been administered to the victim as personnel worked to save her.

The post attracted hundreds of comments and has been shared more than 1,000 times. Yesterday, the agency responded to criticism that the metal bar did not appear to be trucking equipment. “Of course the public and cops immediately blame a trucker,” a Facebook user complained. Others asserted that any truck driver would likely be unaware a tool had fallen from the vehicle.

The CHP account responded: “We are just going by what witness said and just trying to contact the truck driver to hear his side, that’s what you do in an investigation. And if the truck driver is found and it was off of his trailer there are no criminal charges that will be recommended.”

The investigation continues.