Update: incredible pictures show the devestating damage to the sheds and houses.

Firefighters investigating a blaze which damaged two houses in Terriers last night, say an “electrical fault” was to blame.

The fire is believed to have broken out in a garden shed in Green Road, destroying two sheds and damaging two houses, with an incident commander confirming the reason behind the fire this morning.

No one is believed to have been injured in the fire, but the authorities described the buildings as 10 to 15 per cent fire damaged, with smoke causing about 60 per cent damage.

Earlier, the authorities explained how they battled the Terriers fire.