Police are investigating a crash that occurred Friday morning involving two semi-trucks and a 4-door passenger car.

Preliminary investigation revealed all of the vehicles involved in the incident were traveling southbound on IH 35 Proper in the 1600 block of IH 35 North.

New Braunfels police said the first semi-truck was traveling southbound in one of the outside lanes of IH 35 North, and changed lanes when it struck a small 4-door passenger car.

This caused the passenger car to lose control and drift across all lanes of IH 35, towards the interior lanes of IH 35, where it collided and got trapped under the trailer and into the back axels of the second truck tractor's trailer, according to police.

Authorities said this collision occurred in the interior lane of IH 35. The driver of the truck tractor trailer applied the brakes and skidded to a stop.

Police said it is believed the passenger car was pinned under the trailer and against the front side of the trailer axels for approximately one-fourth of a mile until the truck tractor trailer was able to come to a complete stop.

The New Braunfels Fire Department began extrication efforts, which police said proved to be challenging since the car was pinned under the trailer and into the back axels of the trailer.

A 19-year-old New Braunfels woman was the only occupant of the 4-door passenger car and was taken to University Hospital via Airlife in stable condition, said police.

Officials said the southbound lanes of IH 35 were closed for approximately an hour and a half.

Police said this accident is under investigation by the New Braunfels Police Department Traffic Unit.