![Live M1 traffic updates today as motorway closed in Hertfordshire near M25 following crash](https://cdn.newsserve.net/ONPglobe256.png)
Live M1 traffic updates today as motorway closed in Hertfordshire near M25 following crash
The road is expected to remain closed for some time following a 'serious incident' and traffic diversion routes are in place for both the northbound and southbound carriageways.
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