- Major motorway closed with hour-long delays after multiple car crash Metro.co.uk
- M25 traffic stopped in Hertfordshire after multi-vehicle crash BBC
- Major motorway closed as air ambulance lands after crash The Independent
- Air ambulance called as crash closes M25 in Herts Welwyn Hatfield Times
- Bucks motorway severe traffic with ‘delays increasing’ after crash reports Bucks Free Press
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