Barsalogho Massacre: How Defensive Trenches Became a Mass Grave

WARNING: This report contains references to killings and graphic violence that some readers might find distressing.

Videos circulating online show the moment militants killed more than 100 unarmed residents digging defensive trenches in Barsalogho, Burkina Faso, last month. 

Footage shows those killed lying in trenches dug to protect their town.

Satellite images also reveal that extensive new trenches were dug around Barsalogho immediately after the massacre.