Eritrean troops fighting in Ethiopia's northern region of Tigray killed hundreds of people in Aksum mainly over two days in November, witnesses say.

The mass killings on 28 and 29 November may amount to a crime against humanity, Amnesty International says in a report.

An eyewitness told the BBC how bodies remained unburied on the streets for days, with many being eaten by hyenas.

Ethiopia's Prime Minister Abiy Ahmed, a Nobel Peace Prize winner, told parliament on 30 November that "not a single civilian was killed" during the operation."