Gardai investigating the murder of Andrew Allen, who was shot dead just over three years ago, have arrested a man.
Mr Allen was killed at his home near Buncrana, Co Donegal in February 2012.
Republican Action Against Drugs said it carried out the murder. No-one has ever been convicted for the killing.
However detectives say they remain committed to solving the crime.
A number of arrests have been made by Gardaí investigating the murder in the Links View Park area on the night of February 9, 2012 and Gardai are working closely with their colleagues in the PSNI.
Gardai confirmed that a man his 30s was arrested in Buncrana this afternoon and is being detained under Section 30 of the Offences Against The State Act.
The inquest into the brutal killing was recently opened in Letterkenny, where the coroner condemned the murder but said that, due to an ongoing police investigation no cause of death could yet be recorded and the inquest was adjourned.
In February, gardaí renewed their appeal for information in relation to the fatal shooting."