Nigeria SARS protests: reports of military firing on crowd

Witnesses say armed and uniformed men stopped ambulances from helping the wounded - and that CCTV cameras were taken down just before the military started shooting.

A nurse in Argentina talks about her work helping patients with Covid, as the country records more than a million cases.

And a space probe successfully sucks up samples of rocks and dust, which could reveal how our sun and solar system came into being billions of years ago.