Two questioned, one released in Newport murder inquiry
A man and a woman are still being questioned about the murder of a 60-year-old man in Newport.
The man's body was found in the city early on Saturday, with police believing he was the victim of a serious assault.
A 19-year-old man has been released on police bail after being arrested on suspicion of murder.
Detectives issued a fresh appeal for witnesses, saying it was "vital" people with any information came forward.
A man, 25, and a woman of 23, from Newport, remain in custody, said police.
Gwent Police believe the man who died may have been hit by a vehicle while lying in the road, in Broad Street in the Pill area of the city.
Det Supt Paul Griffiths, who is leading the investigation, said it was "vital" that anyone driving in the Broad Street area of Pill between 02:00 and 04:00 BST on Saturday contact him via the 101 telephone service.
A further four people, two men, aged 22 and 44, and two women, 18 and 46, have been released on police bail after questioning over suspected driving offences.
They were arrested on suspicion of causing death by careless and inconsiderate driving and failure to report a road traffic collision.
A spokeswoman said on Sunday: "We continue to appeal for witnesses to the incident, which happened between 02:00 and 04:00 BST in the Broad Street area of Pill. Please contact 101 with any information."
Broad Street will continue to be closed to traffic while investigations continue.
The area has been cordoned off and house-to-house and forensic inquiries are being carried out.