A man has been arrested following an armed robbery at a convenience store in Drumcondra in Dublin this afternoon.

At approximately 4:30pm a man entered the store on Botanic Avenue and threatened staff with a firearm.

He made his escape with a sum of money in the direction of Drumcondra Road Lower.

Passing Gardai patrol, who were made aware of the incident, spotted the youth and gave chase on foot.

Following a lengthy chase the man was arrested on Drumcondra Road.

He is currently being detained in Mountjoy Garda Station.

A sum of money along with what is believed to be an imitation firearm was recovered when the juvenile was arrested.