FIREFIGHTERS have been battling a large blaze at a chemical manufacturing plant in Flintshire. 

Crews were called to the Synthite plant in Mold shortly after 2pm on Tuesday (April 30). 

North Wales Fire and Rescue Service sent four crews, the Incident Command Unit, the Hazardous Material Unit and the aerial ladder platform to incident in the production area of the facility. 

North Wales Police closed a stretch of the A541 Denbigh Road near the site, and urged nearby residents and businesses to keep windows and doors closed. 

The Leader: Firefighters at the sceneFirefighters at the scene (Image: User generated content)

Witnesses reported hearing multiple explosions shortly after the fire started - with huge plumes of thick black smoke billowing from the blaze. 

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There are currently no details on whether anyone has been hurt in the incident. 

The Leader: Firefighters used an aerial ladder platform to tackle the blaze. Firefighters used an aerial ladder platform to tackle the blaze. (Image: Rick Matthews)

A Synthite spokesperson said on Tuesday afternoon: "We can confirm that there has been an incident at Synthite, Alyn Works, Denbigh Road, Mold. 

“We are assisting the emergency services accordingly and we will issue more details when further information is available.”

Synthite has operated from the Alyn Works site at Denbigh Road, Mold, since the 1950s.

Its main product is formaldehyde, a basic building block of the chemical industry used in the manufacture of a vast array of everyday goods ranging from cosmetics to furniture and floorboards.