Three men have been arrested on suspicion of stabbing a 25-year-old man to death in Dagenham.
The suspects, aged 33, 29 and 23, were arrested at separate addresses across east London last night.
All have been arrested on suspicion of murder and are in custody at separate police station in east London.
Two men, aged 38 and 31, arrested earlier in connection with the investigation have been bailed until early July pending further enquiries.
A murder probe was launched after the victim was stabbed outside The Beaver Centre in Selinas Lane on Sunday.
Police believe a fight broke out between two rival gangs at the entrance of the hall before the victim was stabbed repeatedly.
Officers, ambulance crews and an air ambulance crew were called to the hall at 5.35am before the man was taken to hospital in east London but died shortly after 7am.
His family have been informed but formal identification hasn’t taken place.
A post mortem examination took place at Queens Hospital Mortuary on 19 May and gave cause of death as multiple stab wounds.
Police are appealing for witnesses. Call 020 8345 1570 or 0800 555 111 with information.