Emergency services are tackling a fire after what is thought to have been an explosion at a chemical factory.

North Wales Fire and Rescue Service said it was called to a fire in the production area of the Synthite factory on Denbigh Road, Mold, Flintshire, at about 14:05 BST.

About 20 workers and contractors were evacuated to a police cordon in the town.

It is believed one man was injured and has been taken to hospital.