The M1 northbound was closed this afternoon close to Junction 8, following a multi-vehicle collision.
Police were called to the scene at 3.53pm and the incident is believed to have involved a lorry and at least one car. The lorry was on fire.
The M1 northbound was closed but police have now opened Lanes 3 and 4.
Ambulance and fire crews also attended the scene, and it is understood some people suffered minor injuries.