article_snippet: A 68-year-old grandmother and three teenagers have died following a fatal car crash on a notorious stretch of mountain road in Brecon Beacons.
article_snippet: The three teenagers who died have been named locally as Alesha O’Connor, Rhodri Miller and Corey Price, all aged 17, from Barry.
article_snippet: Another three teenagers are in a serious condition in hospital following the head-on collision between two cars at an accident blackspot.
article_snippet: Two of the teenagers were students at Ysgol Gyfun Bro Morgannwg in Barry while the third was a former pupil.
highlights_snippet: Three 17-year-old teenagers from Barry, South Wales, also died in crash .
  
highlights_snippet: Further three people were injured and are in 'serious condition' in hospital .
  