A 57-year-old woman suffered life-threatening injuries after a man poured bleach on her face in the Tenderloin on Sunday evening.

The incident took place at 7:30pm at 100 Eddy St. near Mason St. The woman was sitting on the sidewalk when an unknown man in his early 20s attacked her with bleach.

According to SFPD spokesperson Grace Gatpandan, there was no indication of the suspect's motive or what, if anything, had provoked the attack. 

The woman told police officers responding to the incident that she could not see after the attack. She was taken to a nearby hospital and expected to survive her injuries. At this time, it is not known if the eye damage is permanent. 

No arrests were made in the case and police are actively investigating. 

Anyone who has information about this incident is encouraged to contact SFPD via the department's anonymous tip line at 415-575-4444, or text TIP411 with "SFPD" at the start of the message.