Around 70 firefighters are continuing to tackle a blaze at a scrap metal recycling centre.
The fire in Clarel Avenue, Birmingham, involving up to 800 tonnes of mixed plastic, rubber and metal, started at around 2pm on Tuesday.
West Midlands Fire Service said crews made "good progress" in dealing with the blaze overnight despite challenging conditions.
At its peak more than 100 firefighters were drafted in to tackle the "severe" blaze, which is believed to have started accidentally.
A statement from the fire service said: "We're likely to remain there for a good part of today."