The SOS Desaparecidos Association has issued an alert for the search for Iago Negrón González, who disappeared in Pozuelo de Alarcón on December 27.
The boy is 19 years old, has black hair, is of slim build and brown eyes.
"Any information you have, send it through this Instagram channel," his father posted on the social network.
The telephone numbers provided by the association to provide relevant information on his whereabouts are 649 952 957 and 617 126 909.
In addition, the usual emergency channels are available, such as 112, 091 for the National Police, 062 for the Civil Guard or 092 for the Local Police.