Youth stabbed in Magherafelt, County Londonderry 20 April 2013 Last updated at 13:52 Police are investigating the stabbing of a teenager in Magherafelt, County Londonderry. The 17-year-old was injured in the early hours of Saturday morning in Rainey Street. He has been taken to hospital for treatment but his injuries are not believed to be life threatening. A 22-year-old man has been arrested.