Amazon and Sony among firms that may have sourced coltan, used in phones, from supply chains controlled by the M23 rebels, says Global Witness

Leading global brands including Amazon, Ericsson and Sony are “likely” to have sourced minerals linked to a militia accused of widespread sexual violence, summary executions and torture, a new investigation claims.

The companies allegedly, but unknowingly, acquired coltan smuggled from mines in the Democratic Republic of the Congo (DRC) that are occupied by the M23 militia, which has committed myriad atrocities in eastern DRC.

Islamic State-linked militia blamed for raids in North Kivu as governor says three patients with disease fled clinics

Rebel attacks around a town that is one of the centres of the Ebola outbreak in the Democratic Republic of the Congo have left more than 30 people dead over the past few days, complicating the response to the disease.

At least 10 people were massacred in raids on three villages around the city of Beni, in North Kivu, in the early hours of Wednesday morning.