Police have arrested a couple in the West Mercia area, bringing to five the number of people detained following the discovery of a stabbed body in a ditch near the A16 in Newborough, the BBC reported.
Police had been searching for the couple, a 30-year-old woman and a 47-year-old man, since the body of Kevin Lee, 48, from Fletton, was found Saturday.
A post-mortem showed Lee had been stabbed to death, the BBC said.
A 36-year-old man from Peterborough remains in custody, while two other men aged 32 and 23, both from Peterborough, were arrested and bailed, it said
Lee was last seen on Good Friday and reported missing at 10.40pm that day, after his car was discovered burnt-out near a farm in Yaxley at about 9pm, Sky News reported earlier on its website.
Man and woman held over body in ditch
