The drivers were performing illegal manoeuvres to avoid a queue of traffic ahead
Dozens of drivers performing illegal U-turns to avoid a traffic jam on the M1 have been described as "behaving ridiculously", external by police.
Northamptonshire Police released CCTV footage, external showing the vehicles, including a Cumbrian coach, making illegal U-turns at Junction 18 near Crick.
It shows them heading the wrong way down a slip road to get off the M1.
The drivers had been approaching a queue caused by a serious accident at Junction 19 on Sunday 5 July.
The CCTV footage shows the vehicles, including a coach, at Junction 18 near Crick performing illegal U-turns on the motorway
Police said the drivers were risking their lives and the lives of other road users
It was recorded just before 21:00 BST.
PC Dave Lee, of the force's tactical roads policing unit, said: "These people were behaving ridiculously.
"People joining the motorway aren't expecting other vehicles to be coming towards them.
"These drivers were not only putting their own lives at risk, they were risking the lives of everyone heading down that slip road."
Officers are now investigating the footage so action can be taken against the drivers who performed the illegal U-turns.
Wigton-based coach company Reays confirmed the driver who performed the U-turn has resigned.
The footage showed vehicles turning around and going the wrong way up a slip road
