M25 reopens after St Albans industrial fire forces closure
A 40 mph speed limit remains on the motorway near Colney Street after smoke drifted across lanes
Trust 66Craft 60Hype 30How this was reported ▾
Trust 66: includes named Deputy Chief Fire Officer and direct quote, but only one source and no independent verification.
How well corroborated and evidenced the reporting is. Higher is better.
Critic 60: explains impact and next steps, but reads like a press release with limited original reporting.
Context, balance and separation of fact from comment. Higher is better.
Hype 30: headline mildly dramatic but body remains factual, no excessive sensationalism.
How far presentation runs ahead of substance. Lower is better.
1 source assessed · methodology
The M25 motorway reopened this morning after a fire at an industrial unit in Ventura Park, Colney Street, forced its temporary closure. The blaze, reported at 9:21 am on 11 August 2026, prompted the deployment of ten fire engines and an aerial ladder platform to the scene.
Hertfordshire Fire and Rescue Service confirmed the fire has been contained within the unit. Crews are continuing to work to bring the blaze under control, though it is expected to take several more hours to fully extinguish. Nearby warehouses and units have been evacuated as a precaution.
M25 closed after fire creates explosion risk near South Mimms services
National Highways diverted traffic after flames spread from a lorry carrying lithium-ion batteries
Residents advised to avoid area
Deputy Chief Fire Officer Mark Barber issued a statement at the scene. He asked residents in the vicinity to keep doors and windows closed and to avoid the area while emergency services operate. Barber thanked the public for their cooperation and patience.
We are asking people living nearby to keep their doors and windows closed and to avoid the area while emergency services continue to deal with the incident.
Mark Barber, Deputy Chief Fire Officer, Hertfordshire Fire and Rescue Service
M25 closed between St Albans and Maple Cross after warehouse fire
Hertfordshire Fire and Rescue Service has sent 15 appliances to a blaze near junction 22
The closure of the M25 followed smoke drifting across the carriageway. National Highways confirmed the motorway has since reopened, though a 40 mph speed limit remains in place near the affected section. Drivers are advised to expect delays and follow signage.
What happens next
Firefighters will remain on site to monitor the situation and ensure the fire is fully extinguished. The speed restriction on the M25 is expected to stay in place until smoke and debris are cleared. Residents are advised to follow updates from Hertfordshire Fire and Rescue Service and National Highways.
Questions this report answers
+Why was the M25 closed near St Albans?
The M25 was temporarily closed on 11 August 2026 after smoke from a fire at an industrial unit in Ventura Park, Colney Street, drifted across the carriageway. The motorway has since reopened with a 40 mph speed limit in place.
+How long will the fire take to extinguish?
Hertfordshire Fire and Rescue Service expects the fire at the Ventura Park industrial unit to take several more hours to fully extinguish. Ten fire engines and an aerial ladder platform remain at the scene as crews work to bring it under control.
+What should nearby residents do?
Deputy Chief Fire Officer Mark Barber advised residents near Colney Street to keep doors and windows closed and avoid the area while emergency services respond. Nearby warehouses and units have been evacuated as a precaution.
+Will there be delays on the M25?
A 40 mph speed limit remains in place on the M25 near the affected section. Drivers are advised to expect delays and follow signage until the restriction is lifted by National Highways.
WE FILE
No invented reporter. No hidden source trail.
The London Travel Desk assembled this report from the outlets listed below. Language-model drafting is reviewed under human editorial supervision, with scoring notes and corrections kept visible.
More Coverage in Roads & Driving
M25 closed after fire creates explosion risk near South Mimms services
M25 closed between St Albans and Maple Cross after warehouse fire
M25 overnight closures start 10 August between junctions 15 and 16
