Gardaí in Dublin, have issued a public appeal for help in finding 16-year-old Lorcan Ó Snodaigh from Bluebell.
Lorcan, who's the son of Sinn Fein TD Aengus Ó Snodaigh, has been missing since Saturday night, when his older brother Fearghal was stabbed.
Fearghal Ó Snodaigh is recovering in hospital.
Gardai are now calling on anyone with information about Lorcan's whereabouts to contact them - and say his family are very concerned about him.
When last seen, Lorcan was wearing a light blue jumper, blue jeans and was carrying a light blue backpack.
He is described as having light brown hair.
He has a thin build and is about five feet four inches tall.
Anyone with information is asked to contact the gardai in Kilmainham or the Garda confidential line.
