Emergency services rushed to the scene in South Wales after a “big explosion” was heard, with police declaring it a “serious incident”.

South Wales Police have closed off roads as they tackle the “large fire” on an industrial estate in Treforest, a village in Pontypridd. The estate is a 60,000 sq ft (5,574 sq m) warehouse called Rizla House that houses 13 commercial units including a gym, a towel manufacturer, a food laboratory and a telecoms service company.

Councillor Andrew Morgan took to X, formerly Twitter, and said that “there is a significant fire on the Treforest Industrial Estate, emergency services are on the scene… please avoid the area”.

Local NHS emergency departments are on “high alert” following the incident and urge people not to attend A&E unless “absolutely necessary”.

Cwm Taf Morgannwg University Health Board said: “Due to the ongoing incident at Treforest Industrial Estate this evening, all of our emergency departments are currently on high alert.

“Please help us by not attending A&E unless absolutely necessary. We need to be able to provide care to those who need it the most.”

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