Fears are mounting that a boy who disappeared without a trace 12 days ago may be in the hands of human traffickers in Argentina.
Loan Danilo Pena, aged five, vanished in the province of Corrientes, around 450 miles north of the city of Buenos Aires.
He was last seen on June 13, near the district of Gota, when the three adults and three children he was with lost sight of him.
Despite an extensive search operation...