The fire service say investigators will be arriving at the scene of this morning's blaze at Blackwood's Pound Stretcher store shortly to begin an investigation into the blaze.
Crews will spend the rest of the day dampening down the building say officers.
More top news
Showers will clear this evening to leave a largely dry night with clear skies. Temperatures expected to tumble with a risk of frost in parts
Watch our report with the rugby region's stars, who were feeling the heat in some very specialist pre-season training today.
As it's announced that response times will be axed for most 999 calls, our Health and Social Affairs Correspondent assesses what it means.