San Mateo woman, 70, killed in house fire

SAN MATEO (KTVU) -- San Mateo fire officials were investigating a house fire that broke out early Friday and killed a 60-year-old woman who lived in the home. 

The coroner identified the woman as Sandra Caron, 70. Initial reports suggest that there was no obvious signs of external trauma to the body. Investigators have said they were looking for a second person, believed to be the woman's estranged husband, who also lived at the home.

The blaze was reported around 4 a.m. at a home in the 1500 block of Oak Street just north of Highway 92 in San Mateo. 

Some residents in the neighborhood were jolted out of bed when other neighbors began knocking on doors telling homeowners to get out of the area. Some witnesses recorded the flames on their phones and said the fire extended 20 feet into the air.

Fire crews upgraded their response to 3-alarms over concern that the fire may spread to neighboring homes, however crews were able to contain the blaze to just one house.

Firefighters discovered the victim's body after the blaze was brought under control. Neighbors say the victim was a woman, but investigators have not confirmed any details about the victim.

In 2011, San Mateo police fatally shot a man outside the home. The man was said to be holding a gun when he was shot and killed by responding officers.

KTVU reporter Alex Savidge contributed to this report.