The West Midlands Ambulance team has treated a total of 13 people, including 12 firefighters, at the scene of the recycling plant fire in Smethwick.
In total three people were taken to hospital after more than 50,000 tonnes of recycling material was set alight.
Briefings are expected to take place today on road closures surrounding the factory.
Northamptonshire's Arson Task Force is warning local residents about floating lanterns following the fire at a Smethwick recycling plant.
Around 50,000 tonnes of plastic recycling material and a factory is on fire in Smethwick.