The incident happened a little after 10 p.m. The victim was taken to an area hospital, authorities say.
The BART station reopened just after 11:40 p.m.. Officials say they do not know where the stabbing took place.
Stay with ABC7 News for the latest details on this developing story.
BART has recovered from an earlier prob. Trains were not stopping at CIVC earlier. We are back to normal svc at CIVC.
— SFBARTalert (@SFBARTalert) August 25, 2016
Trains are not stopping at CIVC on DALY line due to police activity. Muni is providing mutual aid on market st
— SFBARTalert (@SFBARTalert) August 25, 2016