A former hostage who had been held in Syria by Islamic State extremists has described mock executions and other forms of psychological torture.
Spanish journalist Javier Espinosa wrote in the Sunday Times that militant Mohammed Emwazi played a lead role in the mock executions.
Emwazi is the Londoner nicknamed Jihadi John who has played a central role in a series of beheading videos made in Syria.
Espinosa describes how the militants took pleasure in telling their hostages daily that they would be beheaded.
Espinosa was released last March after being held hostage for more than six months.
