In Nigeria, residents in the Niger Delta town of Billé have taken to the streets to demand government action over catastrophic pollution. For several months, the community has complained of toxic, flammable gas leaking from the ground, contaminating water and destroying aquatic life – which the people rely upon for their livelihood. It’s the latest in a long series of environmental disasters in the Niger Delta, which have largely been blamed on Western oil companies. Report by FRANCE 24 correspondent Sam Olukoya.