Aerial photo taken on April 11, 2020 shows empty roads amid the COVID-19 pandemic in Johannesburg, South Africa. (Photos: Xinhua)

Aerial photo taken on April 11, 2020 shows empty roads amid the COVID-19 pandemic in Johannesburg, South Africa.

Aerial photo taken on April 11, 2020 shows empty roads amid the COVID-19 pandemic in Johannesburg, South Africa.