🚨 M25 Traffic Accident Today: Lorry Fire Causes Major Delays

M25 traffic accident today dominated morning headlines as a lorry fire erupted between Junction 24 (Potters Bar) and Junction 25 (Waltham Cross). The blaze sparked M25 congestion, bringing traffic to a standstill and triggering motorway delays that stretched for miles.

In this post, I cover the unfolding events, the causes, the impact on drivers, and what steps authorities took to restore safe travel.

1. What Happened and Where

A lorry carrying hay bales caught fire at around 5:50 am on Tuesday, August 26, 2025, between J24 and J25 on the M25’s anti-clockwise carriageway. Fire crews—including four fire engines and roughly 25 firefighters from Hertfordshire Fire & Rescue and London Fire Brigade—attended the scene.

They contained the fire but left a portion of the HGV still smouldering while managing the aftermath of a related multi-vehicle collision. Emergency responders closed the affected section completely.

National Highways warned motorists to expect up to two-hour delays and around 13 miles of jammed traffic. Congestion worsened quickly as drivers approached the site.

2. Impact on Drivers and Commuters

The fire shut down the M25’s anti-clockwise flow between Waltham Cross Interchange (J25) and Potters Bar (J24).

Drivers faced:

• Standstill queues
• Forced detours onto A-roads
• Long backups across the network

National Highways urged motorists to avoid the area, allow extra journey time, or postpone travel altogether.

These motorway delays spilled onto local roads, causing ripple-effect congestion far beyond the immediate closure. That morning, traffic chaos reigned.

👉 Related internal blog: Latest M25 Traffic News and Live Delays

3. Why This Accident Mattered today 

The M25 is one of Europe’s busiest orbital motorways, carrying hundreds of thousands of vehicles daily.

A single incident—like this hay-laden lorry fire—creates chain reactions. When paired with a collision, the disruption multiplies:

Commuters heading into London face delays

Freight carriers lose valuable time

Airport travellers miss flights

This event highlights how fragile the balance is on the UK’s most important motorway.

4. How Authorities Responded today 

Emergency services moved fast.

Firefighters worked on extinguishing the hay fire.

Police managed safety cordons and diversions.

National Highways updated drivers via X (Twitter) and radio feeds.

Authorities released trapped vehicles in stages and monitored the spread of congestion.

Notably, a concurrent serious collision on the M11 added pressure, showing how quickly multiple incidents can create regional gridlock.

👉 External link for live updates: National Highways Traffic Alerts

5. Advice for Drivers After the Incident today 

If you were affected—or could be in future—here’s what experts recommend:

Avoid J24–J25 until full clearance is confirmed.

Use alternate routes like the A1(M) or M1, depending on direction.

Check live updates from Traffic England, Waze, or National Highways.

Delay your journey if possible.

Expect M25 congestion to linger for hours after reopening.

6. Signs the Road Was Clearing today 

Recovery crews worked through the morning to:

• Remove burnt hay from the carriageway
• Tow the damaged lorry
• Resurface the worst-affected lane

As lanes reopened gradually, traffic began flowing. National Highways reported improvements after midday, but residual queues extended well into the afternoon.FAQs

Q1: What caused the M25 traffic accident today?
A hay-carrying lorry caught fire between Junction 24 and Junction 25, triggering a multi-vehicle crash that shut down the anti-clockwise section.

Q2: How long were delays due to this incident?
Authorities warned of up to two-hour delays and roughly 13 miles of congestion.

Q3: Which agencies responded to the accident?
Hertfordshire Fire & Rescue, London Fire Brigade, police, and National Highways all attended.

Q4: Are there alternative routes to avoid this area?
Yes. Use the M1, A1(M), or local A-roads depending on your destination.

Q5: How can I stay updated on M25 incidents?
Follow National Highways traffic alerts, local radio stations, or apps like Waze.

Conclusion

The M25 traffic accident today was a stark reminder of how quickly a single incident can disrupt the UK’s busiest motorway. A burning lorry, combined with a multi-vehicle collision, created standstill queues, severe motorway delays, and widespread commuter frustration.

For drivers, the key takeaway is preparation: always check live updates, plan alternative routes, and allow extra time when travelling on the M25.

Call to Action

Want reliable updates on M25 incidents, live traffic news, and motorway delays? Stay connected:

📧 Email: m25updates@youremail.com

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