POLICE are investigating last week's wildfire on the Black Mountain that the fire service said was started deliberately.

The massive fire engulfed miles of mountain land and threatened three properties as crews from Llandeilo and Ammanford were forced to join Amman Valley firefighters in an attempt to help tackle the blaze that started on Thursday, March 26.

Dyfed-Powys Police said they have started a criminal investigation following the spate of deliberate grass fires across the Black Mountains. A police spokeswoman said: "If anybody has any information that will assist Police in identifying those persons responsible for these fires then we urge you to get in touch with us on 101, quoting DPP/2581/25/03/2020/02/C."

Sergeant Marc Davies, of the Arson Reduction Team added: "At this time of year we're aware that incidents of deliberate grass fire increase significantly.

"We understand the significant burden these deliberate fires place upon our emergency service colleagues, as well as the terrible impact they can have on the community and environment.

“We appreciate that many of these fires are the direct result of antisocial behaviour or intended criminality but we are also aware that burning is sometimes used as land-management tool in the agricultural community. In these cases our advice is to always notify the fire service of any planned burns and never burn on land that doesn’t belong to you without prior agreement or permission of the landowner.”