A man has been caught driving a 44-tonne truck along the M4 while using two mobile phones at the same time.
Video footage of the shocking incident was captured last week by police officers using an unmarked lorry as part of Operation Tramline, a project aimed at cracking down on dangerous road users.
The clip gives an elevated view into the cab of the driver's Mercedes articulated vehicle where he can clearly be seen holding a phone to each ear.
And, when he realises he's been spotted, he quickly puts the handsets down and places both hands back on the steering wheel.
The offending vehicle was then reported to a supporting policing unit which intercepted it between Junctions 17 and 18, travelling from the direction of Bristol.
The driver was given an on-the-spot £200 fine, reports BristolLive.
Chief Inspector Jason Shears, Roads Policing Lead for Avon and Somerset Police, said: "Driving whilst distracted is every bit as unacceptable as drink driving and just as likely to be fatal.
"Research has shown that drivers using a phone – handheld or hands free – are four times more likely to be involved in a collision and their driving is also impaired to a degree similar to that of a drink driver.
"Safety on the roads of Avon and Somerset is our road policing unit’s absolute priority and we will not hesitate to use every option open to us, including the deployment of a range of unmarked vehicles, to tackle dangerous and anti-social driving habits."
During the week-long crackdown operation, officers found 51 people not wearing seatbelts, 11 illegally using a mobile phone while driving, seven speeders and five driving without due care and attention.
Four motorists are to end up in court for their alleged offences, while 72 were handed fines.
Avon and Somerset Police and Crime Commissioner Sue Mountstevens called the offences "appalling, unacceptable and dangerous."
