Firefighters had to force their way into an empty flat when neighbours reported a smell of burning.
Two fire crews were alerted at 4.50pm yesterday to the smell coming from inside a flat in Great Central Road, Loughborough.
The fire crews from Loughborough found a quantity of paper on fire inside the flat.
It is believed the fire was caused by carelessly discarded smoking materials.
There was small amount of smoke damage to the flat.