The Children's Aid Society was notified after two young boys were left inside a parked car in freezing temperatures while their parents were inside a restaurant in Vaughan, Ont.

York Regional Police said that they found the six and four-year-old boys shivering inside the car on Tuesday afternoon at a shopping plaza at Hilda and Clark Avenues, near Yonge Street and Steeles Avenue West, after a concerned citizen called police.

The temperature reached to -22 Celsius during Tuesday's cold weather alert, police said.

The doors of the vehicle were locked and the heat was not on inside the car, police said.

Officers smashed through ice-covered windows to get the shivering boys out.

Police said that they estimate the children had been left alone for more than 20 minutes while their parents were inside the restaurant.

Neither child was injured. Both parents were cautioned by police and the Children's Aid Society was notified.