The criminal gang originated in a Venezuela prison and has slowly spread both north and south in recent years. It now operates in the United States. The full scale of its operations is unknown.

Yet US President Donald Trump has praised the tough tactics of his gang-busting Salvadoran counterpart ... hearings by video link from a room in the prison, or to exercise for half-an-hour a ...

Tecoluca – Confined to their cells for all but 30 minutes a day, denied visits, forced to sleep on stainless steel cots without mattresses: this is life in Latin America’s biggest prison.