NATURAL Resources Wales (NRW) has issued another update on a fire that broke out at a Flintshire factory last month.

On April 30 emergency services were called to a blaze at the Synthite chemical plant on Denbigh Road, Mold.

There were multiple explosions witnessed and people living nearby were urged to keep windows and doors closed.

Despite an initial statement from the company stating no chemicals had been released as a result of the blaze, concerns were raised when several fish were found dead in the River Alyn days later.

But now, in their latest update to the public, NRW have said that pollution levels have 'fallen sharply' at the river.

Lyndsey Rawlinson from Natural Resources Wales said: “Our extensive water sampling and monitoring work since the incident have shown the levels of pollution in the river Alyn to have fallen sharply and to be within safe levels. There is no longer any need to keep pets or livestock away from the water.

“Monitoring has also shown the effect on the river Alyn biodiversity to have been localised to the immediate stretch of river neighbouring the factory fire and fish are now returning to the area.

“The multiagency clean-up operation and recovery phase will continue over the coming weeks and our officers will continue with routine water sampling of the river Alyn.”