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M4 Blocked: Fog and Crash Cause Travel Chaos
9 Nov
Summary
- Two-vehicle collision on M4 caused three miles of congestion.
- Overnight fog reduced visibility, prompting travel warnings.
- Weather warnings issued for fog across southeast England and Northern Ireland.

A collision involving two vehicles on the M4 motorway resulted in three miles of traffic congestion and a temporary blockage. National Highways confirmed that police and recovery services were dispatched to the scene between junctions three and four, near Heathrow Airport, late Sunday night.
Overnight fog also contributed to hazardous driving conditions around Heathrow. The airport issued a social media warning, advising passengers to allow additional time for their journeys to the terminal and to check flight statuses with their airlines.
The Met Office had issued a yellow weather warning for fog, effective from Sunday evening through Monday morning. This warning covered southeastern England, East Anglia, the Midlands, and parts of Yorkshire, with a similar alert in place for Northern Ireland overnight.
Authorities advised drivers to check road conditions, allow extra travel time, and ensure fog lights were operational. They also noted that public transport, including bus, train, flights, and ferry services, could be affected, recommending travelers stay updated with their travel providers.