Hundreds of dangerous drivers have been caught by police using an unmarked HGV.
Over the last two years almost 400 drivers were pulled over by Cumbria Police and other North West forces. Highways England released this video showing a driver checking his mobile with his foot on the dashboard:
Other offenders include a lorry driver spotted reading a book while driving on the motorway, and another who was seen using two mobile phones at once.
The offenders were among more than 4,000 dangerous drivers in England caught by the unmarked HGV over the past two years.
Officers gave verbal advice to 388 drivers, issued 838 fixed or graduated penalty notices, and filed 3,318 traffic offence reports. There were also 113 prosecutions for more serious offences.
The westbound carriageway of the A66 between Crackenthorpe and Bolton is currently blocked because of a broken down HGV.
Police were called at 9.59am today. Drivers are advised to expect delays.
Long hours, unsociable shifts, training costs and a high demand for online goods - all factors which are leading to a growing shortage of lorry drivers both nationally and locally.
In Cumbria and the north east an extra 1,700 hundred drivers are needed. The Road Haulage Association says the situation is deteriorating fast with more and more companies struggling to recruit. Kate Walby reports.
Traffic police in Cumbria say they have their eyes set on HGV companies whose drivers are breaking the law by not taking required breaks.
It comes after staff and drivers at Ross International were sent to prison for tachograph fraud.
Six people have been arrested in Cumbria on suspicion of being illegal immigrants.
It's after a group of men were seen jumping out of the back of an HGV in a lay-by on the A66 near Penrith.
After a search, six males aged between 15 and 25, of Afghan origin were arrested.
Cumbria police say the UK Border Agency will continue with the investigation.