The most seriously injured was a bouncer, in his 40s, who was trying to break up the brawl that led to the other six stabbings, police say. He's in critical condition with life-threatening injuries. None of the other injuries are considered life threatening, police say.
The bar, known formally as Upstairs, Downstairs, has had issues with violence in the past. Police issued a citation for today's incident, which means a hearing before the Boston Licensing Board and possible penalties from a reduction in hours to revocation of its liquor license.