Fire crews battled a blaze in a village which sent black clouds of smoke into the air.
The crews were called on Wednesday morning to a building fire on Cople Road in Cardington in Bedfordshire.
Bedfordshire Fire and Rescue asked people in Cardington, Willington and Blunham to keep all windows and doors closed.
Others were warned of traffic building up after nearby road closures.
Bedfordshire Fire Control tweeted that “the area will be very busy with traffic so please avoid the area".
At 3.15pm on Wednesday, the fire service added the incident was "still ongoing and is likely to continue for a number of hours".
It thanked residents for their cooperation.
The service later said the fire had been "scaled down" and residents could re-open their windows and doors.