Three men are in Garda custody this morning after an armed raid on a Dublin Post Office.

Staff and customers at the branch at Leonard's Corner on Clanbrassil St were threatened with a crowbar at lunchtime yesterday.

The gang of three men also brandished a knife during the attack but fled on foot when they failed to open the safe.

Gardaí arrested three men in a relation to the incident in a nearby flat a short time afterwards.

They're being questioned today at Kevin street and Pearse Street stations.