Crews went through a manhole to rescue a woman who was found trapped in a storm drain in Southern California days after she was reported missing, officials said.

As of 1 p.m. Monday, first responders were working to rescue the woman from the storm drain. At this point, it's unclear how far down she was.

San Diego Fire-Rescue Battalion Chief Erik Windsor said on Monday that he thought Yafang Zhou, 59, may have been trapped for days