Updated 3:26 p.m.

Officials have not yet determined the cause of a house fire in unincorporated Glen Ellyn Tuesday afternoon.

Craig Eldridge, spokesman for the Glen Ellyn Fire Department said the home was undergoing construction, or some sort of remodeling, and the fire appeared to be contained on the second floor. There is extensive water damage to the entire back portion of the home, Eldridge said. He could not speculate on the cost of the damage.

"There was a lot of fire in that house when we got there," Eldridge said. "The DuPage County task force is on the scene investigating."

Firefighters from multiple districts battled the blaze in 1S400 block of Sunnybrook Road in unincorporated Glen Ellyn. No firefighters were injured. One neighbor was taken to the hospital for treatment after she witnessed the fire, officials said.

Neighbors say one neighbor broke a window in the house when they saw the fire to allow two dogs to escape.

The fire broke out around 12:45 p.m. on Tuesday, March 27. No one was inside the home when the blaze started, according to Glen Ellyn Police Chief Phil Norton and neighbors on the scene.

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While strong winds whipped through the densely wooded area, firefighters said winds were not a significant factor in fighting the blaze.

Firefighters from Carol Stream, Glen Ellyn, York, Bloomingdale, and Winfield were still on the scene as of 2:41 p.m. At that time it was unclear what caused the fire. A construction dumpster sat in the driveway but neighbors could not confirm if work was being done on the home. 

Neighbors said the residents have three grown children, including one possibly in college, and have been longtime residents at the home. 

Stay tuned to Patch for more details as they become available.