Man arrested over police murder
Detectives investigating the murder of a police officer by dissident republicans have arrested a man in Newtownabbey, county Antrim.
48-year-old Constable Stephen Carroll was killed by the Continuity IRA in March this year after attending a call-out to a housing estate in Craigavon.
The 22-year-old suspect has been taken to the Serious Crime Suite at Antrim Police Station on Thursday for questioning.
Three people have already been charged in connection with the murder.
