Africa News Tonight: Nigeria protests continue, extremists may be training in South Africa, Olympics sees thrilling 100-meter races

Protests over economic hardship continue for a fifth day today in Nigeria, despite President Bola Tinubu’s call yesterday for organizers to suspend the protests and engage in a dialogue with the government. Some security experts say militants belonging to Islamic extremist groups such as al-Qaeda and Islamic State may have undergone military instruction in South Africa under the guise of being trained as security guards. And Olympic track action gives sports fans a thrill.