A third person has been arrested by gardai investigating the suspected gangland murder of a man in Tallaght in south Dublin.

Karl Wynne, a convicted armed robber, died in hospital seven weeks after he was shot outside St. Dominic's Shopping Centre last May.

He was wounded in an attack on May 30th and subsequently died of his injuries in hospital on July 19th.

Two man (aged 25 and 28) were arrested in Finglas this morning and were taken to Tallaght garda station for questioning. The third man (31) was arrested in Co. Laois this afternoon.

They are the first people to be arrested as part of the murder investigation.