Cardiff firefighters have been working throughout the day put out a fire fuelled by 150 tonnes of scrap metal.
The South Wales Fire Service received a call reporting the blaze at 10:45 am on Sunday morning.
Copious amounts of smoke could be seen coming from the site of European Metal Recycling in Downais Wharf, Cardiff.
Five fire engines from stations at Cardiff Central, Ely, Whitchurch and Roath attended the incident.
Firefighters have been attempting to extinguish the blaze using four ground monitors and one jet.