Burundi's outgoing President Pierre Nkurunziza has died at the age of 55. The government says he died of a heart attack on Monday, but as people criticise the authorities' approach to and reporting of Covid-19 cases, rumours are already circulating that Nkurunziza was himself a victim of the disease. He had been due to step down from 15 years in power following last month's election of his hand-picked successor, Evariste Ndayishimiye. At least 1,200 people were killed and around 400,000 fled unrest sparked by Nkurunziza's controversial but ultimately successful 2015 bid for a third term.