A woman suffered major head trauma in a Loop 410 crash and police say she was arguing with a passenger when the crash happened.
It was just after midnight Sunday when the woman lost control and slammed her car into a median on 410 near Marbach.
The impact threw her from the car and into a light pole.
She was not wearing a seat belt.
She hit her head and police say had critical trauma when EMS transported her to University Hospital.
Investigators suspect the woman was intoxicated.