Fire investigators believe a huge factory blaze in Wolverhampton last week was started deliberately.
More than 100 firefighters attended the fire on Wobaston Road in Fordhouses during the night on Wednesday 25 January.
The fire involved an entire factory and its stores of paper, plus a significant amount of stored chemicals.
The fire broke out late last night and at its height, more than 100 firefighters and 20 fire engines were used.
20 firefighters are still at the scene.