This morning a 15-year-old girl is being questioned by officers on suspicion of violent disorder.
Last night a 16-year-old boy was arrested on suspicion of the same offence and has been bailed pending further enquiries.
The 16-year-old boy who was arrested in the early hours of yesterday on suspicion of violent disorder and section 18 assault has been bailed pending further enquiries.
Shortly before 9.55pm on Saturday police were called to eastZeast restaurant on Bury New Road to a disturbance involving a dispute between a group of youths.
Emergency services attended and a 16-year-old boy was taken to hospital with serious injuries where he remains for treatment.
Anyone with information should contact police on 0161 856 8181 quoting reference number 2442 of 30/03/19 or the independent charity Crimestoppers, anonymously, on 0800 555 111.