Three teenagers have been arrested on suspicion of arson following a fire at a hotel in Corby.
More than 50 firefighters and eight pumps, plus specialist vehicles, were deployed to the Hampton by Hilton Hotel in Princewood Road at 3.50pm on Saturday.
Police were also in attendance.
Fire crews worked to put out the fire and to ventilate heavy smoke logging from the building from which 120 hotel guests and staff were evacuated when the fire alarm went off.
Nobody is believed to have been injured.
The fire is believed to have spread from a bin/laundry area to the rear of the hotel.
Area manager David Harding of Northamptonshire Fire and Rescue Service said: “This was a fire that could have had even more serious consequences.
“The fire crews did an excellent job in containing and putting out the fire and in thoroughly searching the building to ensure all the guests and staff had safely evacuated.
“I would like to acknowledge the great support provided by our police and ambulance colleagues throughout the incident.”
The two boys and one girl arrested in connection with this incident have been released on police bail pending further enquiries.
Witnesses or anyone with information about the incident is asked to contact police on 101 or Crimestoppers anonymously on 0800 555111.