A third man has been arrested in an ongoing investigation into organised crime.

The man, who is in his late 20s, was arrested in the midlands this afternoon and is being detained at Naas Garda Station.

A man in is 30s, who was arrested yesterday, remains in custody in Naas.

The first man to be arrested was released without charge yesterday.

The 30-year-old was detained after a car was stopped and a firearm and cash seized near Ballymore Eustace on the Kildare and Wicklow border.