Santa Rita Fire District crews responded to calls of a rollover on southbound Interstate 19, near the Sahuarita exit, Saturday night.
Upon arrival, crews found a car on its roof with heavy damage, according to a social media post from SRFD. One of the car's occupants had been ejected, the post said.
The ejected patient was "stabilized, packaged and transported" to Banner University Medical Center - Main Campus in critical condition.
Crews also deployed a handline to cool the car, since there was smoke observed coming from the engine compartment, the post said.
An investigation into what caused the crash is ongoing.
