The A419 London Road is closed in both directions due to a vehicle fire between London Road/ Dr Newton's Way (Waitrose) and Thrupp Lane.
It's near The British Oak public house. There is no estimated time for the road to re-open.
More top news
The blaze in the Greenbank area of the city happened on a street occupied by around 40 caravans.
People across the West Country have been reflecting on a spectacular royal wedding ceremony.
There could be some showers in the East later on.