A car burst into flames on Hammersmith Flyover, causing the road to be closed in both directions for about an hour.
Five firefighters attended the incident on the eastbound carriageway on Tuesday evening at about 10.40pm.
Lucinda Gosling tweeted: "Awful fire on Hammersmith Fltover. Hope no one was in the car."
The blaze was brought under control by 11.05pm and there were no injuries.