At 5:10 a.m. on May 23, San Bernardino County firefighters were dispatched to an unknown fire in the 300 block of Old Mill in the Hook Creek area of Lake Arrowhead.

The responding engine company reported heavy smoke and went into structure fire response mode.

Due to the fire plotting within Cal Fire’s State Responsibility Area (SRA), they also sent a response.

Units arrived on scene to find a large two-story home well involved in fire, with exposures to adjacent structures, vegetation and high-tension power lines. The large fire quickly extended to adjacent small rental cabins, ground fuels and trees. Due to the firing growing, a second alarm was quickly requested.

Smoke and fire impacting high-tension power lines caused a “life hazard alert” for firefighters on scene.

The fire was ultimately brought under control in approximately 90 minutes. In total one home, five small cabins and three-quarters of an acre of vegetation burned. The home and cabins were vacant at the time of the fire. No injuries to firefighters or citizens were reported.

Firefighters remained on-scene for multiple hours working on overhaul of the structure, containment of the vegetation and investigation.

San Bernardino County Fire responded with seven engines, a medic ambulance, two chief officers and two fire investigators. They were aided by a Cal Fire engine.

The fire remains under investigation by San Bernardino County Fire investigators.