A man has been treated by ambulance crews for smoke inhalation at a city flat.
Emergency services were called to a second floor flat on Allan Street in the early hours of this morning.
The Scottish Fire and Rescue Service sent three appliances, with 14 firefighters tackling the blaze.
The crews, two from Central Fire Station and one from North Anderson Drive, used four breathing apparatus, two hose reel jets, a thermal imaging camera and a fan to put out the fire.
The blaze was eventually extinguished at 3.05am.
Crews remained on scene until 4.15am, to ensure that the fire was fully extinguished.
A spokesman for the fire service said: “We attended a fire within a flat on Allan Street this morning, where one male casualty was treated by the ambulance service.
“Three appliances were sent to the scene and the fire was out by 3.05am.”
A spokesman for Police Scotland said that the fire appeared to have been caused by a discarded cigarette.
He said: “We received a call at 2.33am to reports of smoke coming from a property.
“There doesn’t appear to be any need for an investigation into the cause, and the fire doesn’t look suspicious.”