A blaze badly damaged the upper floor of a disused snooker hall in Rugby this afternoon.
The alarm was raised at around 4pm and there was concern that rough sleepers might have been in the building on Railway Terrace.
Fire crews wearing breathing apparatus searched the building to ensure there was nobody trapped inside or overcome by smoke.
Two Warwickshire Fire and Rescue Service crews put out the blaze, with assistance from a West Midlands Fire Service crew from Binley in Coventry.
Roly Bayley, Station Commander at Rugby Fire Station, said: “The crews worked very hard to stop the fire spreading to nearby properties and we held it in check.
“There was evidence that people may have been sleeping there - there were mattresses inside the building and there was a lot of rubbish in there.”
He said it took around 30 minutes to contain the fire, which was giving off thick black smoke.
The two-storey building is diagonally opposite Market Street and next to homes in Lennon Court, but residents did not have to be evacuated.
Railway Terrace was closed for more than 90 minutes and bus routes were diverted.
Station Officer Bayley said: “We are sorry about the inconvenience and appreciate the support from the public and businesses in the area.”
He said it was too early to say what caused the blaze and fire investigators were continuing their work at the building, which is understood to have been empty for some time.