Grass fires break out across south Wales in dry weather 8 June 2013 Last updated at 10:41 Fire crews have been tackling a series of grass fires across south Wales overnight. A large blaze at Glyncorrwg, near Port Talbot, was still burning on Saturday morning. Mid and West Wales Fire and Rescue said they have been there since the alert came shortly before 01:00 BST. South Wales fire crews have tackled incidents at Cymmer, Porth, Bedlinog and the Rhigos and Maerdy mountains, and helped fight the Glyncorrwg fire. Mid and West Wales fire control said crews had been fighting the blaze in rotation since the early hours with around twenty firefighters using four appliances at any one time. There are no reports of any injuries.