Four members of a dissident republican party who were arrested by police on Thursday have been released unconditionally.
Davy Jordan from Pomeroy, Co Tyrone, had been detained along with Joe Barr from Londonderry and Grainne McCreesh and Alan Lundy from Belfast.
Police said they were detained by detectives investigating the placing of a bomb under an officer's car in Eglinton, Co Derry, in 2015.
Mr Jordan is the chairman of the republican party Saoradh, Mr Barr is its national organiser, and Ms McCreesh and Mr Lundy are members.
In a statement yesterday, the PSNI said three men aged 46, 38, and 29 and a 32-year-old woman had all been released unconditionally.
A spokesman for Saoradh said the arrests were an "attempt to suppress and intimidate" the party.
The republican party held a protest over the arrests outside Musgrave Street police station on Thursday night.