91福利社

Unrest is continuing in Nigeria's biggest city, Lagos, after the shooting of protesters. The Nigerian army has denied involvement but witnesses and human rights groups say troops opened fire on hundreds of demonstrators, killing a number of them on Tuesday. We hear the latest developments, explain the background and speak to protesters.

Also, as part of the 91福利社鈥檚 鈥淯S Election 2020: What the World wants鈥�, we continue to get messages from around the world about the United States and November鈥檚 election. We answer those questions with the help of an American politics expert.

And our medical expert answers questions about the latest developments on Covid-19. Epidemiologist Dr Maria Sundaram discusses safety in the classroom after a study suggested that the back of the room is safest from transmission.

(Photo: Smoke rises from Lagos mainland, Nigeria. Credit: Jacob Parakilas/Reuters)