On this edition of Africa 54, authorities in Nigeria investigate reports that soldiers opened fire on demonstrators protesting against police brutality; Supporters of Guinea’s opposition presidential candidate celebrate after his announcement that he had won the first round of Sunday’s poll; An initiative founded by three black women doctors in the U.S. aims to address some disparities in health access for minorities amid COVID-19.

A54 Technology: A Nigeria-based online auto platform, Cars45, is competing with traditional car dealers as it grows its platform, which buys, sells, prices, and rates the condition of pre-owned vehicles. VOA's technology reporter Paul Ndiho reports.