A fourth person who was arrested yesterday in connection with the Ding family murder investigation has been released on bail.
Officers are investigating the deaths of four members of the Ding family in Wootton, Northamptonshire, last year.
A 22-year-old woman from Southend, Essex, has been arrested on suspicion of conspiracy to assist an offender.
She was interviewed at a local police station to where she was arrested and later released on police bail.
Officers investigating the murder of the Ding family in Northampton have revealed they believe the prime suspect Anxiang Du is in Morocco.
A further arrest has been made in connection with the investigation into the deaths of four members of the Ding family.
Police face criticism over Ding murder