The Greenfield Apartments fire was started by an improperly discarded cigarette, causing $5 million in damage, say fire investigators.

The fire at Greenfield Apartments Wednesday night was caused by a discarded cigarette butt on a balcony. The fire at Greenfield Apartments Wednesday night was caused by a discarded cigarette butt on a balcony.

The fire, at 114th Street and 40th Avenue, began on a third floor balcony at around 8:00 p.m. Wednesday and damaged all 38 suites.

A couple on the second floor below the balcony called 911 when they noticed pieces of debris on fire floating down from the balcony above, said investigators

Fire crews hoped a fire wall might save the south end of the complex, but found there was water damage throughout the entire structure.

The Red Cross is temporarily housing about 50 residents in a hotel.

The fire continues an ominous trend in the city for smoker-caused fires.

The number of smoker-caused fires in 2011 was the highest ever recorded in Edmonton, said fire investigator Wayne Pawlowski.

More than 85 such fires accounted for almost $10 million in damages.

In 2010, 56 smoker-caused fires caused $5.1 million in damage.