Two adults and two children were rescued from a Tesla that fell 250 feet off a cliff Monday morning in San Mateo County, California, authorities said.

The car was traveling south on Pacific Coast Highway when it fell off the cliff at Devil’s Slide, south of the Tom Lantos Tunnel, landing near the water’s edge below, the Cal Fire San Mateo-Santa Cruz Unit said.

The car flipped over and landed on its wheels in the fall, said Brian Pottenger, incident commander for CAL FIRE/Coastside Fire. Witnesses saw the accident and called 911.

When the crews got out, they could see movement in the front seat, through their binoculars, meaning someone was alive.

“We were actually quite surprised when we found surviving victims in the vehicle. So, that was a really hopeful moment for us,» Pottenger said.

Firefighters called in helicopters to help lift the survivors to safety. While they waited, firefighters descended on the scene and rescued the two children.

The California Highway Patrol shared video on social media showing helicopters lowering first responders to the scene to pull out and rescue two adults inside.

All four were hospitalized. The San Mateo Sheriff’s Office He said the two adults suffered non-life-threatening injuries and the two children were uninjured.

It is unclear what caused the car to go off the cliff. CHP is handling the investigation.