Police are appealing for information after a pile of rubbish was set fire, which then spread to a garden in Hartlepool.
The incident took place on Monday February, 1 at around 6pm in the rear alley of Lowthian Road.
The rubbish fire, which is believed to have been started deliberately, then spread to a garden fence, wheelie bin and mattress which were in the rear garden of a property.
The heat from the fire also caused an internal water pipe to burst.
Those responsible made off from the scene.
Anyone with information is asked to contact PC Jonny Christie at Hartlepool Police Office on the non-emergency number 101 or Crimestoppers anonymously on 0800 555 111 or www.crimestoppers-uk.org.