A 30-year old woman who was arrested in Hereford last week, was last night taken to Cambridgeshire to be questioned over the murders of Kevin Lee, who was 48, John Chapman, who was 56, and Lucasz Slaboszewki, who was 31.
It follows the arrest of a 55-year old man in Peterborough yesterday, on suspicion of assisting an offender.
The bodies of Mr Chapman and Mr Slaboszewki were found at Thorney Dyke on Wednesday 3 April. Kevin Lee's body was found four days before on Saturday 30 March in Newborough.
All three victims were stabbed. In total six people have been arrested as part of the investigation.
More top news
An inquest is to be opened into the death of ex-Aston Villa footballer Dalian Atkinson after he was shot with a police Taser.
Detectives leading a criminal investigation into the disaster want to speak to 19 people seen on CCTV at the stadium that day.
Feeling muggy tonight but remaining dry.