Democratic Republic of Congo imposed a 24-hour lockdown on the mining hub of Lubumbashi on Tuesday and was set to shut down Kasumbalesa, a border town on an copper export route, as authorities traced the contacts of a Covid-19 patient. Jacques Kyabula Katwe, governor of the mineral-rich Haut-Katanga province, announced the area’s first Covid-19 case on Saturday – a 58-year-old Congolese person who had entered through Kasumbalesa.