Police have told the Advertiser that they believe a massive timber fire in Stanton-by-Dale was started deliberately.
Ilkeston firefighters were first called to a timber yard opposite the Seven Oaks pub on Lows Lane at 1.24am.
Crews spent most of the day at the old Stanton Ironworks site. They have now left the scene but will be reattending tonight for a site inspection.
Firefighters managed to save 200 tonnes of wood that was in a 1000 tonnes stack but the remaining timber was left to burn.
At the height of the blaze flames could be seen from the M1 and across the area.