Investigators continue to probe the cause of a single-alarm fire in San Francisco's Bayview district Saturday afternoon that killed a 56-year-old woman, a San Francisco Fire Department spokeswoman said today.

According to Lt. Mindy Talmadge, Ruby Smith died of burn injuries in the blaze, reported at a three-story, single-family home in the 1300 block of Revere Avenue at about 2 p.m.

The San Francisco medical examiner's office has not issued a final report on the cause of Smith's death, which could take weeks.

Damage to the home was minor, Talmadge said.

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According to Talmadge, there are no indications the fire was suspicious or that there was any criminal activity, and officials hope to determine a cause by the end of this week.

— Bay City News