Two people were being questioned on Wednesday on suspicion of murder following a stabbing during a party at the home of a former world champion boxer.
The suspects, a 20-year-old man and an 18-year-old man from the Norwich area, were arrested yesterday by officers investigating the knifing of Tafadzwa Kahn, 25, at the property belonging to Herbie Hide, police said.
Meanwhile the first person to be arrested, a 16-year-old boy from the Norwich area, was released on bail pending further inquiries, a spokesman for Norfolk Constabulary said.
Kahn, known as Taffy, was pronounced dead at the scene on Long Lane in the village of Bawburgh after suffering several stab wounds in the attack in the early hours of Sunday.
A Home Office post-mortem examination found the cause of death was multiple stab wounds.
Hide's property remained sealed as forensic investigators continued to examine the scene.
Family liaison officers have been helping the family of Kahn, from St Giles Street.