A series of arson attacks in the Atherton area of Wigan are under investigation by police.
Three deliberate fires have been started in five days involving domestic and industrial refuse bins.
The first occurred on the Prestwich Industrial Estate between 9pm and midnight on July 10 when a large waste paper bin was placed against the door of a business premises and set alight.
The second incident started between 2.40am and 3.30am on July 15 when a wheelie bin was also deliberately set fire to at the back of a shop.
Finally, police were called to reports of a blaze on Prestwich Street, Atherton, at about 3.15am on July 15.
Sgt John Connor, of the Atherton Neighbourhood Policing Team warned that any future incidents may injure someone.
He said:"Although no-one has been injured so far, should further attacks occur and a building is set ablaze, there is every chance that persons could be injured or even killed.
"We are currently examining CCTV footage of the latest incident where an offender is seen setting fire to an industrial refuse bin, near to a building, and then walking away.
"He is described as wearing a blue top and light-coloured shorts.
"I would urge anyone with information to come forward."
Anyone with information should call police on 101 or the independent charity Crimestoppers, anonymously, on 0800 555 111.