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- There was heavy traffic on the northbound M1 following a crash.
- The crash occurred between J4 and J5 northbound near Watford.
- There were estimated delays of up to 40 minutes.
- Six vehicles were involved.
- One shoulder injury has been reported.
- Please send any pictures or information to fintan.mcguinness:newsquest.co.uk
- Follow our live blog for updates.
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