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- There has been a serious crash on the A41 near Kings Langley this morning
- Emergency services, including the air ambulance service, were called at 10.11am after a multi-vehicle collision approaching the M25 junction
- "Several" people have been trapped and injured, the fire service said
- Road closures are in place and motorists have been urged to avoid the area
- There are warnings of long delays, with the A41 now shut, according to Google Maps
- It is currently unclear how many people have been injured. Updates to follow.
- At around 8pm part of the A41 was still closed
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