The Honolulu Fire Department responded to an apartment fire in Kailua Tuesday night.
The fire broke just before 8 p.m. on Wailepo Street near Kihapai Street.
Fire officials say a second-floor unit was damaged.
Firefighters had the flames under control in about 15 minutes.
The two women who live in the unit were not home at the time.
Investigators say the fire was caused by an electrical malfunction in a wall outlet behind the kitchen refrigerator.
The fire has been classified as an accident and damage is estimated at $65,000.
The American Red Cross was called to assist the victims.