South Wales Fire and Rescue service will investigate what caused a blaze at a recycling plant on Newtown Industrial Estate in Cross Keys, Caerphilly.
The blaze broke out at GLJ Recycling. A spokesperson from the fire service said 700 tonnes of scrap metal and tyres are well alight.
4 pumps and a water bowser were in attendance at the scene, along with representatives from the Environment Agency.
More top news
Cold with frost and fog inland,a little milder but breezy around the coasts!
UKIP's candidate in the Rhondda quits party claiming it's turned its back on the people it claims to represent
It follows an online campaign to give Iestyn Baldwin, from Bridgend "the best birthday ever".