A fire investigation conducted by Nottinghamshire Fire and Rescue Service has recorded an undetermined cause as the fire and rescue service remains on scene 13 days after the fire broke out.
The fire began on Saturday 6 August, with the fire and rescue service continuing to maintain a presence at the site to dampen down with the help of local plant operators.
Fire Investigation Manager Lucie Poxon of Nottinghamshire Fire and Rescue Service said: “We know this incident has had a huge impact on local people and nearby businesses and we would like to thank everyone for their support as we work to bring the incident to a close.
“Due to the significant damage that the fire has caused, our fire investigation has not been able to determine a cause despite our thorough investigating.
“We have been working with our partners at Nottinghamshire Police who suspect this fire was started deliberately. If you have any information, then please pass this on to the police.”
Anyone with information about the incident is asked to call Nottinghamshire Police on 101, quoting incident number 240 of 5 August, or Crimestoppers anonymously on 0800 555 111.