Gardaí are appealing for help in tracing the whereabouts of a teenager from Drogheda, County Louth.

16-year-old Nathan Mulligan hasn't been seen since Tuesday night - when he was on West street in the town.

Nathan is described as being 6 foot in height - of athletic build with brown eyes and black hair.

When last seen he was wearing a black top, black grey tracksuit bottoms and black runners.

Gardaí are concerned for his welfare and are urging anyone with information to contact 041 9874200.