A 19-year-old man has been arrested in connection with a 60-man brawl in Bridge Street, Northampton, in which six people were stabbed.
Police were called out to the town centre at about 3.30am last Friday after a fight broke out in Faces bar and then spilled out into the street.
As well as the six people who suffered stab wounds, two other people were also injured.
A police spokesman said a man, from London, been arrested today (Wednesday) on suspicion of Grievous Bodily Harm (GBH).
Seven of the victims injured in the incident have been discharged from hospital, the force confirmed. The eighth victim remains in hospital but is in a stable condition.