Police have been in the area near South 1st and Sutter Streets for nearly 10 hours after being called Sunday evening. Sutter Street is still closed from South 1st Street to South Almaden Avenue while police work to figure out what happened.
According to SJPD, this was originally called in as a family disturbance just before 8 p.m. Sunday.
Police say the suspect threatened officers with a knife, forcing one officer to shoot the suspect.
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That's when the suspect barricaded themself back inside the home but was eventually taken into custody.
According to SJPD's last update before 2 a.m. Monday, the suspect was transported to a local hospital and was in critical conditions.
Police are expected to give more information in a press conference later today.
Stay with ABC7 News for updates on this developing story.