Seven or eight ambulances are at the scene, and the Yorkshire AirAmbulance is also understood to be there.The Health and Safety Executive are thought to have been informed.
More top news
Jon Mitchell has Tuesday's late forecast
Leeds Utd players and staff have agreed to donated a day's wages to help pay for Toby Nye's treatment
A look back into the history of Huddersfield town when they were the Man United of the day in the 1920's and 30's.