Bystanders leapt into the water at Arlington’s Spy Pond to save a woman whose SUV was sinking, police there said Friday. 

A video camera was rolling as three people began swimming out to the woman’s Ford Edge around 1 p.m.  

At one point in the footage, the car submerges completely, and the driver — a 68-year-old Medford woman — surfaces. 

She is seen being helped back to shore by the other swimmers. 

Police said she accidentally drove the car into the water after attempting to back into a parking spot. 

She was cold, but otherwise unhurt, police said. 

The vehicle remains under water, and a dive team from the Cambridge Police Department will be checking to make sure there were no other victims solely “out of an abundance of caution,” a statement said. 

You can watch the video below.