Police are warning businesses to increase security after a spate of firework thefts.

Three supermarkets in Greater Manchester have been raided and fireworks worth more than �20,000 have been stolen.

J Sainsbury in Stockport had fireworks valued at �8,500 taken by burglars who used metal cutters to break into a warehouse.

Fireworks valued at �10,000 were stolen from Safeway over the weekend, and J Sainsbury in Leigh was also targeted by thieves.

A spokesman for Greater Manchester Police said: "With 5 November only two weeks away, fireworks are in great demand by those who think they can make a profit by selling on stolen fireworks.

"Our other great concern is that these may fall into the hands of children who may not follow the safety precautions necessary when handling fireworks."