Mother, Son And Dog Rescued From Sinking Car

The car barrelled through a railing and began to sink.

Good Samaritans helped to save a mother, her son and their dog after their car crashed into water by a marina in Long Beach, California.

CCTV shows the vehicle barrelling through a railing before hitting the water on Saturday afternoon.

According to CBS Los Angeles, several people jumped in to help the family, including Jeff Perez.

CCTV shows the car sinking after it went through a railing at Long Beach. Image: Supplied

"No sooner did I hop in the water, the lifeguard captain was handing over the older lady to me," he said.

"I would just hope people would do the right thing," Perez added.

"That's what we're all here for, to be here for one another and for support."

Witness Jeff Jones ran to the lifeguard station to get help, and took mobile phone video of the rescue.

"It was very hectic," he said. "The fire trucks came, the local marine patrol came. It just got pretty chaotic, very fast."

Everyone made it out of the vehicle safely, including the dog.