By CBS13 Staff

SACRAMENTO COUNTY (CBS13) — Authorities are investigating after some storage tanks exploded during a house fire along Madison Avenue.

Sacramento Metro Fire crews responded to the scene along Madison Avenue in Carmichael early Thursday morning and found a heavy fire from the back and side of the house. The attic was also involved, firefighters say.

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Firefighters went to work quickly and searched the home, finding everyone was already out.

The flames were soon knocked down, but not before the home suffered significant damage.

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It appears propane tanks and paint tanks exploded during the fire, crews say. Exactly what started the fire remains under investigation.