The Police are asking for the public's assistance to locate Oivend Xuereb, 30, who has been reported missing.
He was last seen in Bahar ic-Caghaq wearing a dark top and light coloured (three-quarters) trousers.
Mr Xuereb was following a residential drug rehabilitation programme provided by Caritas in Bahar ic-Caghaq. He has been reported missing while in custody of the same organization.
Whoever has any information about his whereabouts was asked to call 119 or 2122 4001, in confidence, or visit the nearest police station.