Fire crews have been tackling a blaze above an amusement arcade in Mansfield town centre.
Five engines battled the flames in the flat above Holland Park arcade, on Albert Street, this lunchtime (Thursday).
Police were called to the blaze around 1pm.
It is understood no-one has been injured.
Dame Flogan Street has been cordoned off and there are diversions in place.
A police spokeswoman said people should avoid the area.