An international medical charity says there is a catastrophic health crisis in north-western Nigeria.
Medecins Sans Frontieres (MSF) said extraordinarily high numbers of children were suffering from acute malnutrition.
MSF has treated about 100,000 children with the condition since the beginning of the year; 17,000 required hospital care.
The charity said the humanitarian response had been poor, with greater attention focused on north-eastern Nigeria, where there has been a long-running Islamist insurgency.
