Fire crews from the local Porth station battled all afternoon to control the Trebanog fire, with a helicopter repeatedly dumping water on the area, but the wind swept it down into a nearby valley and up the hillside beyond.
As the fire service respond, politicians demand action.
The First Minister Carwyn Jones will meet with ‘key players’, said the Welsh government, in a summit next week designed to tackle the outbreak.
In a statement on Tuesday the public services minister Leighton Andrews said tackling “this menace must mean much more than just fighting fires or prosecuting offenders. It needs robust action at the community level to divert people away from setting fires, and to identify and expose those who do.”
South Wales Fire & Rescue Service tweeted out earlier today: “the challenge for today is a grass fire free day”. That goal is looking ominously elusive right now.