When Nigerian environmental lawyer Chima Williams launched a lawsuit against oil giant Shell plc, he did not envisage a 13-year battle that would lead to a landmark ruling and land him a prestigious environmental award.

Rescue workers in Burkina Faso have recovered the bodies of four miners who had gone missing after floodwaters submerged a Canadian-owned zinc mine in Perkoa, in the Sanguié province of the West African country.