Commuters into London are facing queuing traffic on the M4 following an earlier accident.
There was around three miles of congestion to J8 (Maidenhead) after the crash, which happened on the eastbound carriageway before J7 (Slough West).
One lane was blocked and Highways England tweeted at around 3.40pm to advise drivers travelling between Maidenhead, Slough and Greater London to plan ahead as the crash was expected to add at least 30 minutes to usual journey times.
There were also reports of an overturned vehicle in the same area.
All lanes have now reopened.
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