Drivers warned of long delays on M1 near Northampton as emergency services respond to collision

The collision happened on the northbound carriageway between junction 15 and junction 15a on Wednesday June 24 just after 12.10pm.

All lanes are now open as recovery of vehicles is complete.

However, according to National Highways, there are delays of around 30 minutes, with four miles of congestion on approach.

Drivers are warned to avoid the area, if possible.

Northamptonshire Police said there is not believed to be any serious injuries.