M4 Live Serious Incidents Now: None We Are Aware Of
There are no serious incidents on the M4 that we are aware of right now, as at 00:52 (12:52am).
This page features the incidents on the M4 that have a bigger effect than an ordinary delay: a sudden closure, a serious collision, a vehicle fire, or traffic that has come to a stop. For every report, including smaller ones and planned roadworks, see the latest M4 traffic news, and for accidents and breakdowns see M4 accidents.
Each item is our own conclusion. We can’t be at every junction, so we put together the reports and readings we receive, from National Highways’ incident reports, overhead signs and live speeds to reports from drivers, and say what they suggest is happening and when it started. Further down are the serious incidents we recorded earlier today, yesterday and over the last month.
Checked 00:52 Sat 10 Oct 2026
Previous serious incidents on the M4
Yesterday
- 20:21 (8:21pm) Collision ✓Reported by National Highways
M4 westbound at junction J7
✓ Cleared after about 71 minutes (1.18 hours) - 19:54 (7:54pm) Collision ✓Reported by National Highways
M4 eastbound between junctions J15 and J14
✓ Cleared after about 4 minutes
© 2026 Corporate Ace Limited. The analysis, wording, charts and conclusions on this page are our own, produced from the live information we collect, including National Highways’ data. You may not copy, republish or reproduce them on any website, app, broadcast or publication without our prior written permission, which must set out how and where they will be used. To ask, please contact us. Powered by National Highways’ Transport Data Feeds.