Cian was wearing a dark green jacket with yellow stripes on the arm, with a light brown hat, black trousers and black shoes.
He is described as 1.78 metres tall, with a slim build. At the time of his last sighting, reports say he was accompanied by a black Labrador.
Anyone with information on Cian’s whereabouts should contact 113 or the Luxembourg City police branch on (+352) 244 40 1400, or via email at Police.LUXEMBOURG@police.etat.lu.
