This week another four people reportedly died and fifteen people were injured in violence linked to desperate food shortages in Venezuela. The opposition has called living conditions for Venezuelans "barbaric" and is demanding the government accept humanitarian assistance from abroad.

The food shortages are causing a rise in child malnutrition, while mothers are struggling to find baby formula milk. Dr Huniades Urbina Medina is the President of Venezuela's Society of Childcare and Pediatrics.

(Photo shows: Empty supermarket shelves in Caracas. Credit: Getty Images)