Another two men have been arrested as part of an investigation into the murders of two Catholic workmen in north Belfast almost 20 years ago.
Gary Convie, 24, and 44-year-old Eamon Fox were sitting in their car at a building site in North Queen Street on May 17 1994 when a gunman opened fire with a submachine gun.
A PSNI spokesman said: “A 48-year-old man was arrested in north Belfast and a 41-year-old woman was arrested in Antrim.
“They are being questioned at Antrim police station.”
Three men arrested on Tuesdsay remain in custody, he added.
The arrests are part of Operation Stafford, an investigation into a series of murders and other serious crimes by the UVF in north Belfast. One man has been convicted of these murders.
In January, a second man was charged with the murders. He is currently on bail.