Up to 120 firefighters tackled a major blaze at a Newport timber warehouse run by DIY firm Able Jacks.
About 20 people were evacuated from homes near to the firm, in the Pill area of the city, while firecrews fought the blaze on December 15.
Part of the building collapsed in the high temperatures and a partial demolition is expected to be necessary for safety reasons. It is unknown how much stock was lost.
