Residents have been warned this morning to keep their doors and windows closed following a huge fire. Smoke could be seen billowing "from quite a distance" after the blaze on Pegs Lane in Hertford. Crews in six fire appliances after several calls to Hertfordshire Fire and Rescue Service late on Tuesday night. "Six fire appliances are in currently attendance at a fire on Pegs Lane, Hertford. Please keep roads in the immediate area clear to allow emergency services to reach the incident as