20k-tonne wood blaze at Newport docks
About 20,000 tonnes of wood is on fire at a south Wales dockyard.
The blaze has been raging at Alexandra Docks in Newport since 17:00 GMT on Saturday.
South Wales fire service said it had broken out at a timber mill and 30 firefighters were at the scene.
Residents are advised to stay indoors and keep windows and doors closed to avoid smoke and ash caused by the the blaze.
Environment body Natural Resources Wales (NRW) said it was working with the site owners, fire service and Public Health Wales to minimise the impact of smoke.
Sarah Jones, a consultant in environmental health protection, said: "Some people may experience symptoms such as nausea, headaches or dizziness as a reaction to odour, even when the substances that cause those smells are themselves not harmful to health."