Two people have been re-arrested over the suspected murder of a man found dead in a river.
Joe Pooley’s body was discovered on 13 August in the River Gipping, near Suffolk Retail Park, in Ipswich.
Post-mortem tests found Mr Pooley, who had learning difficulties, had drowned.
Suffolk Police said it had re-arrested a 29 year-old man on suspicion of murder and a woman aged 36 on suspicion of assisting an offender. Both are from Ipswich.
Another man, 30, and a woman, 24, both from the town, have been bailed until 12 and 14 February respectively.
A woman previously arrested on suspicion of murder has been released while inquiries continue.