The cause of a house fire in the City of Lake Crystal this week remains under investigation. Firefighters were called out to the Neil Fischer home on West Humphrey Street in Lake Crystal Tuesday afternoon, and the house sustained considerable smoke and water damage before the fire was extinguished. It apparently started in a storage closet on the second floor, but the cause remains undetermined. No one was home at the time, and no injuries were reported. The Lake Crystal Fire Department was assisted by firefighters from Good Thunder and Madelia.