Fire investigators are looking into the possibility that a blaze at a empty shop in Abbey Park Road was started deliberately.
Firefighters were called to the unoccupied newsagents at the junction of Swithland Avenue at about 2.20pm today, after reports of smoke billowing from an upstairs flat.
No-one was injured in the incident. However, there were people inside the building at the time of the fire.
A spokeswoman for the fire service said: "We were called to reports of smoke above a shop and a flat being on fire.
"We sent four pumps and everyone was out, and safe and well, by the time we got there."
Firefighters used breathing apparatus to enter the shop, and then the flat taking two hose reel jets with them to extinguish the flames.
Colleagues used a larger covering jet to fight the fire from the outside.
Abbey Park Road and Abbey Lane Eastbound were closed while the emergency services dealt with the incident.
Roads have since reopened.
The fire service said it was looking into the possibility that the blaze was started deliberately, but nothing had been confirmed.
Investigators were due to reinspect the building last night.
Crews left the scene at about 4.40pm.
Police are warning residents living nearby that they could experience a temporary loss of power due to the incident.
Anyone with information can call police on 101.
Alternatively, contact Crimestoppers on 0800 555 111.
