17-year-old Maximilian Streveler has not been seen since 6.30am on Monday 30 September, say police, in their latest appeal for witnesses.

The teenager is described as "sporty" and between 1.80-1.90 metres tall. He has short brown hair, a short beard and was last seen wearing dark clothing. No details have been released on the area in which he was last seen on Monday.

Anyone with information on Maximilian's whereabouts should contact Mersch police on (+352) 244 90 1000 or via email (police.mersch@police.etat.lu).