A busy stretch of the M4 has been closed in both directions near Heathrow Airport following a "serious" crash. Emergency services, including the Air Ambulance, have rushed to the scene.
National Highways warned there is "currently no estimated time of when the carriageway will re-open". The traffic agency said: "The M4 in Greater London is closed westbound between J3 near (Feltham) and J4B (M25 interchange) near Heathrow Airport following a vehicle collision. Air Ambulance services are currently in attendance with National Highways Traffic Officers on scene to assist with traffic management."
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