Fire crews in South Wales stretched to breaking point by wave of wildfires . The fire service said it was dealing with a'very challenging situation' and that the number of people evacuated had risen from about 100 at 6am on Friday morning to more than 1,000 as night Fires 'turned the valleys black ' and devastated wildlife in surrounding area .
Fire crews in South Wales stretched to breaking point by wave of wildfires . Authorities call on parents to report children if suspected of starting blazes . Fires 'turned the valleys black ' and devastated wildlife in surrounding area .