Location : The M4 westbound between junctions J4 and J4B .
Reason : Police incident.
Status : Currently Active.
Time To Clear : The event is expected to clear between 00:45 and 01:00 on 5 February 2026.
Return To Normal : Normal traffic conditions are expected between 00:45 and 01:00 on 5 February 2026.
Lanes Closed : There are lane closures.
