Three men are due to appear in court this morning charged in connection with an attempted robbery at a Dublin post office.
Gardaí arrested the man at at Ballygall Road, Finglas on Wednesday morning after reports of suspicious behaviour.
A firearm, masks and boilersuits were recovered.
Two of the men, who are in their 20s, will appear at Blanchardstown District Court. A third will appear at the Juvenile Court in Smithfield.