Commuters on the M40 southbound face crawling traffic after an accident closed two out of three lanes.

Traffic is said to be "very slow" after the accident on Sunday (November 4) between Junction 5 (Stokenchurch) and Junction 4 (the High Wycombe Handy Cross Roundabout) in Buckinghamshire.

Traffic conditions are expected to return to normal at some point between 6.30pm and 6.45pm.

Motorists driving in London wasted an average of three and a half days of their life stuck in traffic according to research from the last decade.

However, drivers should try as much as possible to keep their temper in check - one in three don't realise that honking your car horn in traffic is actually illegal.

Follow our live blog below for more travel updates as the situation progresses.

Traffic map of the area shows approximate location of crash

This traffic maps shows the accident happened near Cadmore End.

Traffic map of the area
Traffic map of the area

It also makes clear that congestion is worse near Junction 5 in Stokenchurch.

Where is the accident?

The accident took place on the southbound M40 between Junction 5 (Stokenchurch) and Junction 4 (the High Wycombe Handy Cross Roundabout) in Buckinghamshire.

This map shows the area between Stokenchurch and Handy Cross affected by the crash
This map shows the area between Stokenchurch and Handy Cross affected by the crash

Commuters travelling on the above section of the M40 southbound may want to find alternative routes.

What we know so far

An accident on the southbound M40 between Junction 5 (Stokenchurch) and Junction 4 (the High Wycombe Handy Cross Roundabout) in Buckinghamshire has closed two of three lanes.

Traffic is said to be “very slow” and will not return to normal conditions until 6.30pm at the earliest.

We’ll bringing you updates as they happen.