M4 crash J13–J12 eastbound

Live Still reported at 23:16 UK time, since 21:22 (1 h 54 min).

Crash on the M4 eastbound at J13–J12 on Monday 28 September 2026, from 21:22. Still reported at 23:16 UK time. Timeline of reports from National Highways, TomTom and the motorway signs.

1. !

   M4 eastbound · J13–J12

   Collision

   3 of 4 lanes closed · since 21:22 (1 h 54 min)

   National Highways ×3 · TomTom · Motorway signs

See the M4 on the live map M4 traffic now

Timeline

1. 21:34 National Highways: road closed
2. 21:57 TomTom: collision, “Stationary traffic, Accident”, delay ~20 min
3. 22:01 TomTom no longer reports it
4. 22:59 National Highways: 3 of 4 lanes closed
5. 22:59 Motorway signs: “COLLISION”

What the sources said

• M4 eastbound within J12
• Stationary traffic, Accident
• Overhead signs read “COLLISION” (1 sign; furthest along: M4 eastbound within J12).

Other recent incidents on the M4

• M4 closed J19–J20 westbound · 22:41, still reported
• M4 closed J19 westbound · 22:41, still reported
• M4 closed J16–J17 westbound · 22:41, still reported
• M4 closed J12–J13 westbound · 22:40, still reported
• M4 closed J13–J14 westbound · 22:40, still reported
• M4 closed J15–J16 westbound · 22:40, still reported
• M4 crash J12 eastbound · 22:31, cleared after 37 min
• M4 closed J20–J21 westbound · 20:56, still reported
• M4 crash J10–J8 eastbound · 08:26, cleared after 1 h 10 min
• M4 crash J8 eastbound · 08:26, cleared after 1 h 10 min

About this page

This page shows what the data sources reported about this event and when, merged from every source that reported it at the same place. It doesn't say what caused it or whether anyone was hurt: no source reports that. Times are UK time. For live alerts, follow @motorways.me on Bluesky.