Derry arrest as girl injured by motorbike 8 June 2013 Last updated at 11:16 A man has been arrested over a suspected hit and run incident in Londonderry in which a child was seriously injured. Police received a report at about 19:40 BST on Friday that a young girl had been knocked down by a blue motorcycle in Creggan Heights. She is being treated in hospital for serious injuries. A man was arrested on suspicion of dangerous driving causing grievous bodily injury and failing to stop.