MODESTO (CBS13) — Police in Modesto are searching for a missing woman who as not been seen since a warehouse fire on July 7.

Officers say 49-year-old Karena Hickman, who is homeless, had been seen in the area of Briggsmore Avenue and Prescott Road a few hours after the fire in the 200 block of Tully Road.

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Detectives say they have been unable to verify or locate evidence to confirm those sightings. They also said Hickman has failed to follow her normal routines since the fire.

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Authorities brought cadaver dogs into the warehouse due to the growing concern she could have perished in the fire. But after a lengthy search of her known camping area, investigators were unable to locate Hickman.

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Detectives are continuing their investigation into Hickman’s disappearance and are asking anyone who may know her whereabouts or who may have seen her since July 7 to contact Detective Derrick Letsinger at 572-9500.