Six people were wounded, two with life-threatening injuries, in a shooting after a hip-hop concert at a nightclub in San Francisco early Wednesday.

Officers who responded to Mission and 13th streets at 12:46 a.m. found four victims, two of whom were suffering from life-threatening injuries, in front of the Brick & Mortar Music Hall on the northern edge of the Mission. A fifth victim walked into San Francisco General Hospital later, and the sixth was driven to a hospital outside San Francisco.

Anyone with any information about this incident is urged to call police at (415) 558-5400.