Fire broke out for an unknown reason Thursday afternoon in an abandoned building in the Metaxourgio, at the intersection of Cordatos and Diligianni streets.
The flames also extended to two parked cars.
The response of the fire brigade was immediate and 18 firefighters with seven vehicles and an armoured vehicle are involved in the extinguishing operation.
At the same time, water trucks of the Municipality of Athens are assisting in the extinguishing.