Jump to contentThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged inAllNewsSportCultureLifestyleA significant mountain blaze at Llanwonno, near Ferndale in the Rhondda Valley, South Wales, which ignited on Saturday afternoon, continues to be a major incident for emergency services. South Wales Fire and Rescue Service (Swfrs) has confirmed reports of deliberate fire-setting on the mountain overnight on Monday, even as crews battle the extensive wildfire. Firefighters are facing challenging conditions, including poor visibility due to low cloud, mist, and rain, which has also prevented the deployment of a specialist firefighting helicopter. While no forced evacuations have occurred, a rest centre has been established for residents concerned about poor air quality, and locals are advised to keep windows and doors closed. Authorities are urging anyone with information regarding the deliberate fire-setting to contact South Wales Police on 101 or Crimestoppers anonymously. In fullMajor Welsh mountain fire started ‘deliberately’ as crews continue to battle blazeMore bulletinsThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in