M4 Accidents & Incidents
This page brings together the latest M4 accidents and incidents — collisions, breakdowns, spillages and other unplanned events that can cause sudden delays or closures on the M4 motorway.
Latest M4 accidents and incidents
Showing accidents & incidents on the M4 — use the filters to narrow by junction or direction.
Good news — no hold-ups reported on the M4 right now!
Looks like a clear run — have a safe and smooth journey.
Conditions can change, and not every hold-up is reported instantly, so do check back before you travel. Our traffic news updates automatically throughout the day.
Updated 06:00, Sun 2 Aug 2026
Powered by National Highways' Transport Data Feeds.
Staying safe on the M4
Accidents can appear with little warning and conditions can change fast. If you come across an incident, keep your distance and follow any signs or lane closures. In an emergency always call 999, and never use a phone while driving — stop somewhere safe first. For live updates across the whole motorway see our Latest M4 Traffic News page.