SAN FRANCISCO (CBS SF) — A woman was set on fire while she was sleeping in San Francisco’s Potrero Hill neighborhood Tuesday morning, police said Wednesday.

The 35-year-old woman had fallen asleep in the area of 17th and Vermont streets after having an argument with a man and a woman, police said.

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She awoke Tuesday morning somewhere between 8:30 a.m. and 9:15 a.m. covered in an unknown substance with one of the suspects holding a flame next to her, which caused her to catch on fire.

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The woman was taken to the hospital, but was expected to survive her injuries.

No arrest was reported as of this morning and police did not release a detailed description of the suspects.

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