An investigation`s underway after a huge fire on the Earlstrees Industrial Estate in Corby.
Crews were called to the blaze at Multy UK yesterday.
No one was hurt.
Northamptonshire Fire and Rescue Service advised people to keep their doors and windows closed and avoid the area.
A spokesman said thick smoke from the blaze could be seen as far away as Uppingham.
Crews remain at the scene today.