The M4 in Greater London has been closed in both directions near Heathrow Airport after a serious vehicle collision, with emergency services including the Air Ambulance attending the scene.
National Highways confirmed the closure on the westbound carriageway between Junction 3 near Feltham and Junction 4B, the M25 interchange. There is currently no estimated time for when the road will reopen.
Emergency response
Air Ambulance services are at the scene alongside National Highways Traffic Officers, who are managing traffic. Motorists are advised to avoid the area and seek alternative routes.



