Two people remained in police custody today as detectives continued their investigation of the murder of a 22-year-old man in Bath.
The 22-year-old victim had been found with severe injuries in Bath on Sunday night and later died.
The man, who lived in a nearby flat, had been found lying in a residential street in the city at 6.15pm on Sunday.
Police have not revealed where he was attacked or what sort of weapon was used.
After the incident, detectives arrested five people - three women and two men - in connection with the killing and with the supply of controlled drugs.
A 46-year-old woman, from Shepton Mallet, arrested on suspicion of murder was today still in custody, along with a 21-year-old man arrested on Monday, also on suspicion of murder.
A 26-year-old woman and 21-year-old man, both from Shepton Mallet and also arrested on suspicion of murder, have now been given police bail pending further enquiries.
A 20-year-old man from Radstock arrested on suspicion of being concerned in the supply of a controlled drug has additionally been bailed pending further enquiries.
A post-mortem took place late yesterday to establish the official cause of death.
Police had been called to Ringswell Gardens at Lambridge after reports of a man lying in the road.
When officers arrived, they found the man, who has not been officially identified but is named in tributes as Ben, to be bleeding.
He was taken to the Royal United Hospital, where he died of his injuries shortly afterwards.
Parts of the street were cordoned off by police tape and a forensic tent was erected to protect clues, while scenes of crime officers combed the street.
An incident room has been set up at Bath police station where a team of officers are working and have launched house-to-house inquiries.
Police, who are searching for a car seen in the area, say the man may have known his attackers.
Superintendent Geoff Spicer said: "A team of officers are working on this investigation to piece together exactly what happened and why a 22-year-old man lost his life.
"At this stage the motive seems unclear, however we are exploring the possibility that the victim may have known who attacked him.
"We would like to hear from anyone who may have information to assist the inquiry.
"We are particularly keen to speak to anybody who may have seen a small red hatchback in the area on Sunday either before or after 6.15pm."
But Supt Spicer is keen to reassure the people of Bath that they should not be unduly worried about the weekend's events.
He said: "Serious violence in Bath is very rare.
"Events like this on the streets are few and far between. I would remind the community of Bath that this is a very safe place to live, work and visit.
"The neighbourhood beat teams will continue to patrol to provide community reassurance."
Nearby resident Paul Rylance, 55, believes he may have seen the victim just minutes before he was attacked.
He said that at around 6.10pm he had looked out of the window of his flat, which overlooks Ringswell Gardens, and he saw a man wearing a hooded top.
He said: "He was wandering around by the end of the alleyway at the end of the row of houses. I thought he looked a bit suspicious but it went out of my head.
"When I looked out again a bit later the tent was up and there were police everywhere.
"They were searching with torches throughout the night.
"I did not see what happened. Then when I heard the description that the police issued I put the two together."
Flowers were placed at the scene by friends of the dead man yesterday.
Police are appealing for anyone with any information about how the man, who is white, and was wearing a grey hooded jumper and khaki camouflage shorts, came by his injuries to contact Bath CID on 0845 456 7000.
