Social worker critically hurt in stabbing at San Francisco General Hospital

A social worker was stabbed and severely injured Thursday inside Zuckerberg San Francisco General Hospital, authorities said.

The San Francisco Sheriff's Office said at about 1:30 p.m., hospital workers requested additional security for a doctor who had received threats from a patient. While providing security for the doctor, a deputy heard a disturbance in a hospital hallway involving a suspect and the social worker from the University of California, San Francisco, the Sheriff's Office said.

The deputy immediately intervened and restrained the suspect, while medical staff on site tended to the 31-year-old social worker, who was stabbed in the neck and shoulder, the office said. The unidentified social worker was listed in critical condition.

Deputies recovered a five-inch kitchen knife