Chad’s defence minister has said that a landslide at an illegal gold mine had killed about thirty people in a region near the Libyan border early on 24 September, and more victims might still be buried in the rubble. There has been rapid growth in illegal mining in recent years, often by refugees from Sudan looking for quick money to head to Europe or by rebels fighting the army. Unsafe methods and a lack of oversight mean that accidents are common at such mines across Africa, where impoverished communities seek a share of the vast resources that are usually dug up by international companies, processed and sent overseas. As gold surges, so does illegal mining across Chad, South Africa, Ghana, Zimbabwe and Nigeria - bringing crime, danger and risk to fragile environments.