Since then the situation on this remote border quietened considerably. However, in recent years the border has been the focus of renewed attention due to the ongoing instability in Libya since the overthrow of Gaddafi in 2011, the rise in the numbers of refugees and migrants crossing the Sahara,[12] and also the discovery of gold in north-west Chad in the late 2000s-early 2010s which prompted an uncontrolled gold rush.[13]