Gardaí investigating the murder of dissident republican Michael Barr have arrested a man in his late 20s.

The suspect was arrested this morning in Dublin and is currently being detained at the Bridewell garda station, under section 50 of the Criminal Justice Act, 2007.

Mr Barr (35) was gunned down on April 25th at the Sunset House pub in Summerhill, where he worked as a barman. 

The killing has been linked to the Hutch-Kinahan feud, which has claimed seven lives since September.

Eamonn Cumberton of Mountjoy Street, Dublin 7, was charged over the murder last month.

A woman in her 30s has also been questioned in connection with the shooting.