Smoke from the fire can be seen for miles around. Crews from Lancashire and West Yorkshire rushed to the scene after the fire broke out at 12-25pm today and are urging people to avoid the area.
Shaun Walton, Group Manager, Lancashire Fire and Rescue has tweeted about the incident saying: "Crews from @LancashireFRS assisting @WYFRS to deal with large wildfire near Widdop Reservoir. Please avoid the area @ NW_Fire_Control."