By CBSLA Staff

SIMI VALLEY (CBSLA) — A house fire in Simi Valley has caused Ventura County Fire Department crews into a defensive posture, following a partial collapse of the roof.

Firefighters battled the elements on Sunday, as both the massive blaze and high winds caused a series of steep challenges for crews on hand.

Crews have deployed multiple hoses to protect homes in the surrounding area.

All occupants of the house were accounted for as the battle with the blaze continued.

Crews were able to knockdown the fire, and protect all homes in the surrounding area without any damage.

This is a developing story. Check back for details.