South Wales Fire Service are tackling a blaze at GLJ Recycling on the Newtown Industrial Estate, in Cross Keys, Caerphilly.
A spokesperson from the fire service said 700 tonnes of scrap metal and tyres are well alight.
4 pumps and a water bowser are in attendance at the scene.
More top news
South Wales Police tweeted in the early hours of Sunday morning that they had been caught on a stretch of the M4 near Port Talbot.
Cloudy and damp for most of us with outbreaks of rain.
More than 200 people attended the service after Bethel Community Church was destroyed by the fire.