In north western Nigeria ultra-violent bandit gangs raid villages, attack drivers, abduct schoolchildren, and kill anyone who resists. But who are these men, and what do they want? A new documentary from BBC Africa Eye talks us into the heart of Nigeria's worst security crisis, and brings us face to face with some of the most feared bandit leaders in Zamfara state.

In June 2022, shocking videos started circulating online, showing violent clashes between African migrants and Moroccan border guards. They were filmed on a tiny piece of land where Morocco meets Spain – a gateway into Europe – and show the bodies of African migrants being thrown to the ground, beaten and crushed. Twenty-four people died in the incident, and many more are still missing. Africa Eye verified dozens of videos, collected testimonies from survivors and gained exclusive access to the border infrastructure to piece together the most comprehensive investigation into the tragedy and ask – was it preventable?