Four males, including a 15-year-old boy, have now been arrested and bailed after a man was stabbed in the leg in Ipswich on Sunday morning.
Anne-Marie Breach, a spokeswoman for Suffolk Constabulary, said those taken into custody had been detained on suspicion of violent disorder following the incident in Norwich Road.
In addition to the youth, who is said to be of no fixed address, the other suspects are aged 19, 22, and 23, and are from Ipswich.
After being taken to Martlesham police investigation centre and questioned by officers all were released on police bail, pending further enquiries.
They are due to return to the investigation centre on December 12.
The stabbing occurred near the junction with Orford Street at around 10.10am.
Police have said the victim’s injuries were not life-threatening.
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