THIS is the harrowing moment a reckless lorry driver ploughed into the back of a stationary car and killed a tragic 21-year-old mother because he was staring at his mobile phone.

Polish Dariusz Tokarczyk was slammed by police as he was jailed for four-and-a-half years after he drove into the back of Jodie Moss's broken down Vauxhall Corsa.

A dash-cam video shows the moments leading up to the crash on the notorious A34, which claimed the lives of a mother and three children in a similarly tragic collision last year.

Mother-of-three Jodie had stopped in the inside lane - because there was no hard shoulder - and had her hazard lights on, meaning her car was visible.

But reckless Tokarczyk, 47, was looking at his mobile phone while behind the wheel of a juggernaut, and could not avoid her in time.

He was today starting a four year prison sentence after admitted causing death by dangerous driving at Reading Crown Court.

A police spokesman said: "On March 22 just before 9.30pm, Tokarczyk was driving his lorry on the southbound carriageway of the A34 just north of the M4 junction at Chieveley, Berkshire.

"Further ahead on the same carriageway Jodie Moss, aged 21, from Swindon, Wiltshire, was sitting in her car, a Vauxhall Corsa.

"Her car had, according to forensic examiners, suffered "a catastrophic engine failure". Her car was stationary in the inside lane, she had switched on its hazard warning lights.

"According to dashcam footage the road was not busy and other drivers are seen to manoeuvre past her vehicle. Tokarczyk's vehicle drove straight into hers and sadly Jodie died."

Tokarczyk, of Kennion Road, Harrogate, was arrested on March 29.

He admitted the crash, which happened near the M4 junction at Chieveley, at a court hearing yesterday (Monday).

A judge jailed him for four-and-a-half years.

Speaking after the sentencing, detective sergeant Ashley Hannibal added: "This is a tragic case, which could have so easily been avoided. The driver was using his phone.

"Officers and forensic investigators painstakingly examined the dashcam footage from the inside of the lorry looking out onto the road. After watching the footage frame by frame they managed to spot the reflection of what transpired to be the lit screen of a mobile phone held by the lorry driver.

"While this sentence will not take away the pain and feelings of loss for Jodie's family and friends, I hope that it will send a message to all drivers about the dangers of using mobile phones.

"Sadly, this case is not an isolated incident it is one of many that we have been or are investigating, which show the tragic and awful consequences of using a mobile phone while you are driving."