Another car was lit on fire in San Francisco over the weekend, but investigators believe the crime is unrelated to a series of arson fires last month.

The latest fire was reported at about 3:20 a.m. Saturday in the 800 block of Grove Street, in the city’s Alamo Square neighborhood.

The car, a 1991 Honda, was “completely consumed,” police spokeswoman Sgt. Lyn Tomioka said.

“It certainly doesn’t appear to be related to any of the more recent car fires,” Tomioka said, referring to the series of fires in late July that damaged more than a dozen vehicles.

Tomioka said that in Saturday’s fire, some kind of accelerant was used. In the July arson fires, newspapers were set on fire underneath the cars. She said the car that burned this weekend had been reported stolen hours earlier.

Investigators believe two other vehicle arson fires in the city in August are also unrelated to the earlier series.

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