DALLAS (CBSDFW.COM) – Four students from Skyline High School are recovering after being involved in a terrible accident.

A crushed vehicle and a trail of damage tell part of the horrific story experienced by the Dallas teenagers Friday morning.

Joann Brewer–a witness–helps tell the story too.

“First I heard the brakes then a Vroom!” said Brewer. “I mean just a big, loud noise.”

Brewer ran out of her East Dallas home and found a Ford Expedition wrapped around her tree.

Dallas police say the teenage driver was speeding down Scammel Drive–a narrow residential road–when he lost control.

“It hit a curb which caused the vehicle to rollover multiple times striking a tree,” said Monica Cordova with the Dallas Police Department.

Cordova says all four were transported to area hospitals in critical condition.

Two boys got out on their own.

A girl had to be cut out of the SUV by Dallas Fire Rescue and was airlifted by helicopter to the hospital.

And the fourth teen was thrown from the vehicle.

Brewer saw the teen badly bleeding. “He kept hollering for his mother, and we didn’t know who he was so we couldn’t get his mother,” she said, becoming very emotional. “By that time we’d already called the ambulance.”

Police are still investigating why the teen may have beenin a hurry.

Investigators say the crash happened at 9:10 Friday morning, just miles from their school.  According to Skyline’s website, first period begins at 9:15 a.m.

Alfred Thomas is a neighbor of the teenage driver and has known him since he was five. “He’s a good kid,” he said.

More than anything Thomas hopes the teens will be okay. “His dad bought him a truck. I’m just sad things happen for him like this and I hope he pull throug.”

Some of the injuries were described as extensive but Dallas Independent School District (DISD) officials told CBS 11 News all four students involved in the crash are expected to survive.

Crisis counselors will be at the high school Monday.

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