Bridgeport fire officials say a fire sparked by a cigarette forced the evacuation of a multifamily house in the West End Sunday.

It happened this morning in the 800 block of Howard Avenue.

Investigators say somebody tossed a cigarette butt from an upper floor.

Officials say a window frame caught fire and the blaze spread through a wall.

Residents were forced out of the building.

Officials say nobody was hurt and residents were allowed to return to their apartments a short time later.