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All vehicles are currently being held on the M4 eastbound between Uxbridge and Hayes due to a serious accident.

Stationary traffic was reported on the eastbound carriageway between J4 A408 (Heathrow Spur/Uxbridge) and J3 A312 (Hayes), with congestion tailing back to J4b for the M25.

A spokesman for Highways England said: "Traffic is currently being held due to a serious collision.

"Emergency services are on scene with our traffic officers. Please consider alternative routes where possible."

See our live blog updates below for more information.

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'Priority' patient

We’ve now published a full story on this morning’s incident, you can read it here.

Traffic easing

Traffic is easing after the collision between J4 and J3 eastbound.

All lanes re-opened

All lanes have been re-opened on the M4 eastbound.

Police closed the road at 10.05am after an accident which initially blocked the carriageway at around 9.35am.

The cones were picked up at J4 at 10.40, although motorists may still face minor delays.

Man rushed to major trauma centre 'as priority'

Speaking to getwestlondon, a spokesman for London Ambulance Service said a man suffered shoulder and leg injuries in the collision.

We were called at 9:23am today (29 March) to the M4, near junction 4, to reports of a road traffic collision.

We sent an incident response officer and an ambulance crew.

We treated a person at the scene - a man - for shoulder and leg injuries. We took him to a major trauma centre as a priority.”

Traffic on M4

There are still delays on the M4 as emergency services remain at the scene.

The accident is now on the hard shoulder and motorists are being allowed through.

Traffic on M4 between Uxbridge and Hayes
Traffic on M4 between Uxbridge and Hayes (Image: Google Maps)

Delays of up to 30 minutes

Accident on hard shoulder

Trapped traffic is now being allowed through as the accident is on the hard shoulder, but a hard closure is still in place at J4.

People travelling on the M4 can expect delays following the “serious collision”.

Five people treated by paramedics

A spokesman for London Fire Brigade said one person involved in the collision was rushed to hospital by paramedics.

Four others are being treated by London Ambulance Service at the scene for shock.

We were called at 9.25am to reports of a collision between a motorcycle and a car.


One person was taken to hospital by London Ambulance Service and four other people were treated at the scene for shock.


The incident was over for firefighters at 10.18am.

Three-vehicle collision

A police spokesman told getwestlondon officers were called by London Ambulance Service at 8.54am.

There were three vehicles involved in the collision, police said.

Delays of up to one hour

The road closure on the M4 eastbound is causing delays of up to 1 hour and 3 minutes.

Police closed the road at 10.05am after the “serious accident”, which initially blocked the carriageway at around 9.35am.

'Expect delays'

Transport for London has warned road users to use other routes and expect delays as the road remains closed.

'Serious collision' on M4

The eastbound carriageway of the M4 is currently closed due to a serious accident.

There is queueing traffic between J4 A408 (Heathrow Spur/Uxbridge) and J3 A312 (Hayes), with congestion to J4b M25.
Police have now closed the road while all emergency services are on the scene. There is just over one mile of trapped traffic.

We’ll be bringing you all the latest updates as we get them.