Traffic on the M4 motorway (right hand lane is inbound towards London) at Datchet, near Windsor (Credits: PA)
Traffic is building up on the M4 into west London amid ongoing work by the Metropolitan Police.
A stretch of the motorway is blocked eastbound at Junction 3 Heston and vehicles are now being diverted via exit and entry slips.
The major commuter route into the capital was shut at 6.10am and is expected to remain closed until at least 9am.
Queues from even before Junction 4 Heathrow Airport have already formed, with further chaos on the road expected at the beginning of the week.
The National Highways South-East posted on X: ‘Following an incident recently, road is closed within J3 for Met Police investigation work.
‘Road expected to be closed until approximately 9am. Divert off and on. 30 min delay.’
An update from the authority later said that the wait time has now increased to 45 minutes.
It said: ’45 minute delay and three miles of very slow traffic from J4b M25 to J3.’
Crrently, only one lane out of four remains closed between J4 and J3, and this will be removed shortly under a rolling road block.
Delays of up to 20 minutes are reported and approximately three miles of traffic.
This comes after both lanes of the carriageway of the M4 were closed, between Membury Services and Junction 14, after a 13-vehicle pile up on Saturday.
The Met Police told Metro.co.uk: ‘This is due to highways work on a bridge that needs doing following some police investigative work earlier on this morning. No police incident as such.’
Latest London news
Commuters evacuated from busy London station due to ’emergency’
Banksy’s newest work has been ruined after just two days
The London tourist attractions that have seen the biggest price hikes revealed
To get the latest news from the capital visit Metro.co.uk’s London news hub.
This is a developing news story, more to follow soon… Check back shortly for further updates.
Got a story? Get in touch with our news team by emailing us at webnews@metro.co.uk. Or you can submit your videos and pictures here.
For more stories like this, check our news page.
Follow Metro.co.uk on Twitter and Facebook for the latest news updates. You can now also get Metro.co.uk articles sent straight to your device. Sign up for our daily push alerts here.