Three people were injured when the car they were in crashed into a service station in Sydney’s south west. Courtesy Today/Seven News

CCTV cameras have captured the incredible moment a woman made a narrow escape as a car ploughed into a Sydney service station.

Three people were injured when the car they were in crashed into a service station in the south west suburb of Belfield overnight.

The impact triggered a major gas leak at the BP petrol station, leading authorities to block off Punchbowl Road.

The driver of the silver Toyota Camry crossed the busy street’s centre line after losing control of the vehicle, dodging bollards before smashing into the petrol station.

Police closed off the surrounding area as firefighters contained the leak. The three people believed to be in the wrecked car were treated by paramedics at the scene and taken to hospital.

The service station owner Diab Diab told the Daily Telegraph there had been no customers in the shop at the time, only him, his wife and his cousin, who were working.

Security footage from the store reveals a woman was wandering through the store, inspecting items on the very shelves the car would slam into moments later.

In the confronting vision, the appears to have been in the path direct path of the charging vehicle, but is just missed.

A witness later described her as the “luckiest person in the world”.

“We hear bang, bang — a big bang, you know? We look that way and saw a car inside,” Mr Diab told The Sunday Telegraph.

“We have to run away before something blow up. Lucky, (my wife) was by the counter, I was working. If I moved another one metre, I’d be finished,” he said.

The trio dragged two injured people from the car and one who had been thrown from the front passenger seat and on to the footpath, he said.

“They can’t walk and they can’t talk. We had to move them,” he said.

Mr Diab said the whole family was still struggling to come to terms with what had happened.

“Shocked of course, when you come this close to death,” he said.

“I don’t know what I’m going to do, I’ve been here for 25 years.”