Luxembourg police have issued a renewed public appeal for help in locating teenager Byanca Salgueiro Carvalho, who has been missing for over a month.

Police have renewed their appeal to locate 15-year-old Byanca Salgueiro Carvalho, who remains missing after being last seen on 9 October.

A first missing person's notice was issued earlier, and authorities confirmed on Wednesday afternoon that there have been no new leads in the case.

Anyone with information on her whereabouts is urged to contact the Museldall Police Station by phone at (+352) 244 70 1000 or by email at police.museldall@police.etat.lu.