Three people were arrested after a fire on a former cattle market was allegedly triggered by fireworks.
The fire at Nottingham Cattle Market on Meadow Lane caused significant damage to some six companies at 5:40 pm Sunday, Nottinghamshire police said.
Around 100 firefighters fought the fire, which was extinguished on Monday morning.
Two men, ages 18 and 25, and a 25-year-old woman were arrested on Tuesday afternoon for arson.
The troop said that all three are in custody and investigations are ongoing, but there were signs that the fire was triggered by fireworks.
After the fire was brought under control, Incident Commander Simon Glew of the Nottinghamshire Fire and Rescue Service said, "This was a major fire and our crews worked all night to bring the incident under control and our praise goes They work hard for their public safety for their hard work.
"Several buildings were involved in the fire. Currently being investigated to determine the cause of the fire.
"We were supported by our colleagues at the Derbyshire Fire and Rescue Service and the Leicestershire Fire and Rescue Service, and yesterday evening and today we have worked with our partner agencies such as Nottinghamshire Police, Nottingham City Council and East Midlands Ambulance Service."
Mr. Glew added, "The incident was a safe fix and we would like to thank the public and commuters in the region for their patience as we deal with it."