A fire that displaced a family of four late Saturday started in the fireplace and caused $140,000 in damage, City of Colorado Springs officials said.

Firefighters received multiple calls about a structure fire at 5830 Northwind Drive shortly after 7 p.m. and arrived at the burning home on a short time later, city spokeswoman Kim Melchor said in a release Wednesday.

However, severe winter conditions slowed the firefighters' response and an interior floor eventually collapsed, the release stated.

No one was home at the time of the fire and none of the 30 firefighters who responded were injured.

The four residents were able to stay with relatives, the statement said.

The blaze, which was first reported by an off-duty firefighter who lives across the street from the house, was caused by a failure of the fireplace's flue assembly.