An investigation was underway in what authorities were calling a "Christmas tragedy" after four people died in a mobile home fire in Big Bear Lake on Friday.
The San Bernardino County Sheriff’s Department was investigating the early morning blaze in the 500 block of Alden Road.
A deputy arrived at the engulfed mobile home to find a man outside who was hurt. He told deputies four people were still inside, but the fire was too severe for the deputy to enter.
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The houses next to the fire were evacuated and Big Bear Lake Fire Department was called out to attempt a rescue.
The roof began to collapse, and firefighters had to pull back.
A 34-year-old woman and three children, ages ranging from 8 to 6 months old, were killed, the San Bernardino County Sheriff said.
The man who made it outside was taken to a hospital.