Motorists are facing severe delays this afternoon after a number of lorries collided on the M1 - leading to the closure of the northbound stretch at junction 31.
Vehicles had to get off at junction 31 and rejoin the motorway on the entry slip road.
Emergency services were alerted to the smash at 12.50pm.
One driver was cut free from his cab.
The road re-opened at around 4.15pm.