ABOUT 40 people were evacuated after fire broke out at a recycling park.
Firefighters from across the region were sent to the incident on the Wrexham Industrial Estate yesterday.
The fire took place at a biological treatment plant being built at the FCC Environment company on Bryn Lane. No staff were hurt.
Three fire crews from Wrexham and crews from Buckley, Deeside, Johnstown and the incident command unit from Rhyl tackled the blaze.
Service bosses said the fire had started accidentally, but had no more information.
A spokesman for Wrexham Council said: “The building has been evacuated. All staff are fine.”
A spokesman for North Wales Fire and Rescue Service said: “The initial call was received at 11.56am.
“Firefighters attended at a fire in a recycling building on the Wrexham Industrial Estate.
“The fire affected the conveyor belt area in the building, which is currently under construction.
“Firefighters used breathing apparatus, hosereels and main jets to tackle the fire, preventing it from spreading, and also ventilated the property.
“The cause of the fire is under investigation.”
Paul Stokes, head of safety, health, environment and quality at FCC Environment, said: “Fire crews have fully extinguished the fire and there are no reported injuries.
“The Environment Agency has been informed and there are not thought to be any environmental issues. There was no waste within the facility at the time.
“We will be conducting an investigation into the cause of the fire and will implement any necessary measures to ensure a similar situation does not occur in the future.”
A company spokesman added: “There were 40 people working on the site who were evacuated. Most of those were contractors, not FCC Environment staff.”
A spokesman for Natural Resources Wales said two of its officers had been on site giving advice to the fire service on the best way to prevent pollution from the water used to fight the blaze.
“So far it appears that this has been contained with no pollution from the site affecting nearby watercourses,” the spokesman said.
“As the site is regulated by Natural Resources Wales, we already had drainage plans to hand to help us manage this type of incident.
“These were a big help in enabling us to provide correct and swift advice to protect the environment.”
A Welsh Ambulance Service spokesman said: “We were called at 12.01pm to reports of a fire at a property on Wrexham Industrial Estate.
“We sent an ambulance officer to the scene, but no one was injured.”