Gardaí investigating the murder of Vincent Ryan have arrested a man aged in his 30s, it has been revealed.

The man was arrested yesterday afternoon in west Dublin.

He is currently detained at Blanchardstown Garda Station under the provisions of Section 50 – Criminal Justice Act 2007.

Three men are now in custody relating to the investigation.

Investigating gardaí wish to renew their appeal for members of the public who may have information in relation to the murder of Vincent Ryan in Finglas on Monday, February 29, to contact Finglas Garda Station on 01-666 7500, the Garda Confidential Line 1 800 666 111 or any Garda Station.