SACRAMENTO COUNTY (CBS13) — Firefighters say they are investigating the cause of an early morning fire at a home in Antelope that displaced four people.

Sacramento Metro Fire crews responded to the scene along Rudyard Circle a little after 1 a.m. Friday.

Three cars and the house were involved in the fire. Firefighters worked quickly and were able to make sure the flames didn't spread to a neighboring home.

Firefighters say the home suffered significant smoke damage. Four people who were living at the home have been displaced; no injuries were reported.

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Exactly what caused the fire is now under investigation.