**M1 Mayhem: Major Crash Causes Lane Closures**

A serious collision involving a car and a tanker has led to significant disruptions on the M1 motorway. Emergency services were dispatched to the scene following reports of the crash, which resulted in the tanker overturning. Motorists are being warned to expect lengthy delays as recovery operations continue.

As of now, two lanes out of four remain closed within Junction 15 of the M1 northbound in Northamptonshire. Additionally, the northbound entry slip at Junction 15 is also shut. National Highways confirmed the lane closures on social media, advising drivers to allow extra travel time.

A police spokesperson stated, "Two lanes of four are closed within Junction 15 of the M1 northbound in Northamptonshire. The northbound entry slip at Junction 15 is also closed. This is due to a collision that occurred yesterday evening resulting in an overturned tanker. A complex recovery operation is ongoing."

Motorists are advised to seek alternative routes and remain cautious while travelling in the area as the situation develops. The recovery operation is expected to take some time, and further updates will be provided as they become available.