FREMONT -- An early-morning blaze tore through a Fremont home Friday morning, leaving the residence with nearly three-quarters of a million dollars worth of damage, fire officials said.

About 7:05 a.m., fire crews responded to reports of a house fire in the 42700 block of Castillejo Court and found flames shooting out of the two story home, Battalion Chief Ron Chaney said. Firefighters contained the blaze within about 30 minutes, though significant damage was done to the home and its contents.

Cost of damage was estimated at about $725,000, Chaney said.

Both of the home's residents made it out of the house before the fire department arrived, Chaney said. One man was treated at the scene for smoke inhalation.

Preliminary investigation suggests the fire may have started in the living area, Chaney said. The cause of the fire is currently under investigation.

Contact Erin Ivie at 925-847-2122. Follow her at Twitter.com/erin_ivie.