4th arrest made in the investigation of the murder of David Douglas

Gardai investigating the murder of David Douglas in Dublin last summer have arrested a man in his early 40's.

He was shot dead on Bridgefoot Street in the city on July 1.

Gardai - from the Detective units in Kevin Street and Kilmainham - arrested a man in the Dublin area this morning and he's being detained at Kilmainham Garda station.

It marks the 4th arrest in this investigation, while a man is also currently before the courts in relation to it.