M1 southbound: Live updates as motorway closed between Wakefield and Dewsbury following serious two-car crash

The motorway has been closed between junction 40 for Dewsbury and Junction 39 for Wakefield this morning (Saturday) following a serious collision involving two cars.

A woman from one of the cars was seriously injured and taken by ambulance to hospital for treatment.

The southbound carriageway remains closed at the location as investigation and recovery work continue.

Southbound drivers are advised to avoid the M1 at that location if possible.

For the latest updates on this, follow our live blog below.